程序包 org.meteoinfo.data

类 ArrayUtil

java.lang.Object

org.meteoinfo.data.ArrayUtil

public class ArrayUtil
extends Object

作者:

yaqiang

构造器概要

构造器

构造器	说明
ArrayUtil()

方法概要

限定符和类型	方法	说明
static ucar.ma2.Array	argSort(ucar.ma2.Array a, Integer axis)	Get sorted array index along an axis
static ucar.ma2.Array	array(Object data)	Create an array
static ucar.ma2.Array	array(ArrayList data)	Create an array
static ucar.ma2.Array	array(List<Object> data)	Create an array
static ucar.ma2.Array	arrayRange(Number start, Number stop, Number step)	Array range
static ucar.ma2.Array	arrayRange_bak(Number start, Number stop, Number step)	Array range
static ucar.ma2.Array	arrayRange1(Number start, int length, Number step)	Array range
static ucar.ma2.Array	broadcast(ucar.ma2.Array a, int[] shape)	Broadcast array to a new shape
static ucar.ma2.Array	broadcast(ucar.ma2.Array a, List<Integer> shape)	Broadcast array to a new shape
static ucar.ma2.Array	concatenate(List<ucar.ma2.Array> arrays, Integer axis)	Concatenate arrays to one array along a axis
static ucar.ma2.Array	concatenate(ucar.ma2.Array a, ucar.ma2.Array b, Integer axis)	Concatenate two arrays to one array along a axis
static String	convertToString(ucar.ma2.Array a)	Array to string
static PolygonShape	convexHull(ucar.ma2.Array x, ucar.ma2.Array y)	Computes the smallest convex Polygon that contains all the points
protected static void	copyTo1DJavaArray(ucar.ma2.IndexIterator iter, Object javaArray)
protected static void	copyTo1DJavaArray_Long(ucar.ma2.IndexIterator iter, Object javaArray)
static Object	copyToNDJavaArray(ucar.ma2.Array a)	Convert array to N-Dimension double Java array
static Object	copyToNDJavaArray(ucar.ma2.Array a, String dtype)	Convert array to N-Dimension double Java array
static Object	copyToNDJavaArray_Double(ucar.ma2.Array a)	Convert array to N-Dimension double Java array
static Object	copyToNDJavaArray_Long(ucar.ma2.Array a)	Convert array to N-Dimension double Java array
static ucar.ma2.Array	cressman(List<Number> x_s, List<Number> y_s, ucar.ma2.Array v_s, List<Number> X, List<Number> Y, List<Number> radList)	Cressman analysis
static ucar.ma2.Array	cressman_bak(List<Number> x_s, List<Number> y_s, ucar.ma2.Array v_s, List<Number> X, List<Number> Y, List<Number> radList)	Cressman analysis
static String	dataTypeString(ucar.ma2.DataType dt)	Get data type string
static ucar.ma2.Array	delete(ucar.ma2.Array a, int idx, int axis)	Return a new array with sub-arrays along an axis deleted
static ucar.ma2.Array	delete(ucar.ma2.Array a, List<Integer> idx, int axis)	Return a new array with sub-arrays along an axis deleted
static ucar.ma2.Array	diag(ucar.ma2.Array a, int k)	Extract a diagonal or construct a diagonal array.
static ucar.ma2.Array[]	extendHalfCell(ucar.ma2.Array x, ucar.ma2.Array y)	Extend the grid to half cell, so the grid points are the centers of the cells
static ucar.ma2.Array	eye(int n, int m, int k, String dtype)	Return a 2-D array with ones on the diagonal and zeros elsewhere.
static ucar.ma2.Array	factory(ucar.ma2.DataType dt, int[] shape)	Array factory
static ucar.ma2.Array	factory(ucar.ma2.DataType dt, int[] shape, Object storage)	Array factory
static Object[]	findIndices(List<List<Number>> points, List<Number> xi)	Find indices
static Object[]	findIndices(List<ucar.ma2.Array> points, ucar.ma2.Array xi)	Find indices
static ucar.ma2.Array	full(List<Integer> shape, Object fillValue, ucar.ma2.DataType dtype)	Return a new array of given shape and type, filled with fill value.
static List<ucar.ma2.Array>	getArraysFromStationData(StationData stdata)	Get array list from StationData
static int	getDimIndex(ucar.ma2.Array dim, double v)	Get value index in a dimension array
static List<ucar.ma2.Array>	histogram(ucar.ma2.Array a, double[] bins)	Histogram x/y array
static List<ucar.ma2.Array>	histogram(ucar.ma2.Array a, int nbins)	Histogram x/y array
static List<ucar.ma2.Array>	histogram(ucar.ma2.Array a, ucar.ma2.Array bins)	Histogram x/y array
static ucar.ma2.Array	identity(int n, String dtype)	Return the identity array - a square array with ones on the main diagonal.
static ucar.ma2.Array	interpn(List<ucar.ma2.Array> points, ucar.ma2.Array values, List<ucar.ma2.Array> xi)	Multidimensional interpolation on regular grids.
static Object	interpn(List<ucar.ma2.Array> points, ucar.ma2.Array values, ucar.ma2.Array xi)	Multidimensional interpolation on regular grids.
static double	interpn_s(List<List<Number>> points, ucar.ma2.Array values, List<Number> xi)	Multidimensional interpolation on regular grids.
static double	interpn_s(List<ucar.ma2.Array> points, ucar.ma2.Array values, ucar.ma2.Array xi)	Multidimensional interpolation on regular grids.
ucar.ma2.Array	interpolate(ucar.ma2.Array a, List<Number> X, List<Number> Y)	Interpolate array data
static ucar.ma2.Array	interpolation_IDW_Neighbor(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y, int NumberOfNearestNeighbors)	Interpolation with IDW neighbor method
static ucar.ma2.Array	interpolation_IDW_Radius(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y, int NeededPointNum, double radius)	Interpolation with IDW radius method
static ucar.ma2.Array	interpolation_Inside(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y)	Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.
static ucar.ma2.Array	interpolation_Inside(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y, boolean center)	Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.
static Object	interpolation_Inside_Count(List<Number> x_s, List<Number> y_s, List<Number> X, List<Number> Y, boolean pointDensity)	Interpolate with inside method - The grid cell value is the count number of the inside points or fill value if no inside point.
static ucar.ma2.Array	interpolation_Inside_Max(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y)	Interpolate with inside method - The grid cell value is the maximum value of the inside points or fill value if no inside point.
static ucar.ma2.Array	interpolation_Inside_Min(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y)	Interpolate with inside method - The grid cell value is the minimum value of the inside points or fill value if no inside point.
static ucar.ma2.Array	interpolation_Nearest(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y, double radius)	Interpolate with nearest method
static ucar.ma2.Array	interpolation_Nearest_1(List<Number> x_s, List<Number> y_s, ucar.ma2.Array a, List<Number> X, List<Number> Y, double radius, double fill_value)	Interpolate with nearest method
static ucar.ma2.Array	interpolation_Surface(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y)	Interpolate with surface method
static ucar.ma2.Array	interpolation_Surface_1(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y, double unDefData)	Interpolate with surface method
static ucar.ma2.Array	interpolation_Surface_bak(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y)	Interpolate with surface method
static ucar.ma2.Array	lineSpace(Number start, Number stop, int n, boolean endpoint)	Array line space
static ucar.ma2.Array	lineSpace_bak(Number start, Number stop, int n, boolean endpoint)	Array line space
static ucar.ma2.Array	linint2(ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y, ucar.ma2.Array newX, ucar.ma2.Array newY)	Interpolates from a rectilinear grid to another rectilinear grid using bilinear interpolation.
static ucar.ma2.DataType	mergeDataType(ucar.ma2.DataType dt1, ucar.ma2.DataType dt2)	Merge data type to one data type
static ucar.ma2.Array[]	meshgrid(ucar.ma2.Array... xs)	Mesh grid
static ucar.ma2.Array[]	meshgrid(ucar.ma2.Array x, ucar.ma2.Array y)	Mesh grid
static VectorLayer	meshLayer(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, LegendScheme ls)	Create mesh polygon layer
static VectorLayer	meshLayer(ucar.ma2.Array x_s, ucar.ma2.Array y_s, ucar.ma2.Array a, LegendScheme ls, double lonlim)	Create mesh polygon layer
static int	numASCIICol(String fileName, String delimiter, int headerLines)	Get row number of a ASCII file
static int	numASCIIRow(String fileName)	Get row number of a ASCII file
static ucar.ma2.Array	ones(int n)	Get ones array
static ucar.ma2.Array	ones(List<Integer> shape, String dtype)	Get ones array
static double	rand()	Get random value
static ucar.ma2.Array	rand(int n)	Get random array - one dimension
static ucar.ma2.Array	rand(List<Integer> shape)	Get random array
static ucar.ma2.Array	readASCIIFile(String fileName, String delimiter, int headerLines, String dataType, List<Integer> shape, boolean readFirstCol)	Read ASCII data file to an array
static ucar.ma2.Array	readBinFile(String fn, List<Integer> dims, String dataType, int skip, String byteOrder)	Read array from a binary file
static ucar.ma2.Array	repeat(Number v, int n)	Repeat a value n times
static ucar.ma2.Array	repeat(ucar.ma2.Array a, List<Integer> repeats)	Repeat elements of an array.
static ucar.ma2.Array	repeat(ucar.ma2.Array a, List<Integer> repeats, int axis)	Repeat elements of an array.
static ucar.ma2.Array	reproject(ucar.ma2.Array data, List<Number> x, List<Number> y, List<Number> rx, List<Number> ry, ProjectionInfo fromProj, ProjectionInfo toProj, double fill_value, ResampleMethods resampleMethod)	Reproject
static Object[]	reproject(ucar.ma2.Array data, List<Number> xx, List<Number> yy, ProjectionInfo fromProj, ProjectionInfo toProj)	Project grid data
static Object[]	reproject(ucar.ma2.Array data, List<Number> xx, List<Number> yy, ProjectionInfo fromProj, ProjectionInfo toProj, ResampleMethods method)	Project grid data
static ucar.ma2.Array	reproject(ucar.ma2.Array data, List<Number> x, List<Number> y, ucar.ma2.Array rx, ucar.ma2.Array ry, ProjectionInfo fromProj, ProjectionInfo toProj, double fill_value, ResampleMethods resampleMethod)	Reproject
static ucar.ma2.Array	reproject(ucar.ma2.Array data, List<Number> x, List<Number> y, ucar.ma2.Array rx, ucar.ma2.Array ry, ProjectionInfo fromProj, ProjectionInfo toProj, ResampleMethods resampleMethod)	Reproject
static ucar.ma2.Array[]	reproject(ucar.ma2.Array x, ucar.ma2.Array y, ProjectionInfo toProj)	Reproject
static ucar.ma2.Array[]	reproject(ucar.ma2.Array x, ucar.ma2.Array y, ProjectionInfo fromProj, ProjectionInfo toProj)	Reproject
static Object[]	reproject_back(ucar.ma2.Array data, List<Number> xx, List<Number> yy, ProjectionInfo fromProj, ProjectionInfo toProj)	Project grid data
static ucar.ma2.Array	resample_Bilinear(ucar.ma2.Array a, List<Number> X, List<Number> Y, List<Number> newX, List<Number> newY)	Resample grid array with bilinear method
static ucar.ma2.Array	resample_Bilinear(ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y, ucar.ma2.Array newX, ucar.ma2.Array newY)	Resample grid array with bilinear method
static ucar.ma2.Array	resample_Neighbor(ucar.ma2.Array a, ucar.ma2.Array X, ucar.ma2.Array Y, ucar.ma2.Array newX, ucar.ma2.Array newY)	Resample grid array with neighbor method
static void	saveASCIIFile(String fn, ucar.ma2.Array a, int colNum, String format, String delimiter)	Save an array data to a ASCII file
static void	saveBinFile(String fn, ucar.ma2.Array a, String byteOrder, boolean append, boolean sequential)	Save an array data to a binary file
static int	searchSorted(List<Number> a, double v)	Search sorted list index
static int	searchSorted(ucar.ma2.Array a, double v)	Search sorted list index
static ucar.ma2.Array	smooth5(ucar.ma2.Array a)	Smooth with 5 points
static ucar.ma2.Array	smooth5(ucar.ma2.Array a, int rowNum, int colNum, double unDefData)	Smooth with 5 points
static ucar.ma2.Array	smooth9(ucar.ma2.Array a)	Smooth with 9 points
static ucar.ma2.Array	sort(ucar.ma2.Array a, Integer axis)	Sort array along an axis
static ucar.ma2.Array	tile(Number v, int n)	Repeat a value n times
static ucar.ma2.Array	tile(Number v, List<Integer> repeats)	Repeat a value n times
static ucar.ma2.Array	tile(ucar.ma2.Array a, List<Integer> repeats)	Repeat elements of an array.
static ucar.ma2.Array	toBoolean(ucar.ma2.Array a)	Convert array to boolean type
static ucar.ma2.DataType	toDataType(String dt)	To data type - ucar.ma2
static ucar.ma2.Array	toDouble(ucar.ma2.Array a)	Convert array to double type
static ucar.ma2.Array	toFloat(ucar.ma2.Array a)	Convert array to float type
static ucar.ma2.Array	toInteger(ucar.ma2.Array a)	Convert array to integer type
static double	toStation(ucar.ma2.Array data, List<Number> xArray, List<Number> yArray, double x, double y)	Interpolate data to a station point
static double	toStation(ucar.ma2.Array data, List<Number> xArray, List<Number> yArray, double x, double y, double missingValue)	Interpolate data to a station point
static double	toStation(ucar.ma2.Array data, ucar.ma2.Array xArray, ucar.ma2.Array yArray, double x, double y)	Interpolate data to a station point
static double	toStation_Neighbor(ucar.ma2.Array data, List<Number> xArray, List<Number> yArray, double x, double y)	Interpolate data to a station point
static double	toStation_Neighbor(ucar.ma2.Array data, List<Number> xArray, List<Number> yArray, double x, double y, double missingValue)	Interpolate data to a station point
static double	toStation_Neighbor(ucar.ma2.Array data, ucar.ma2.Array xArray, ucar.ma2.Array yArray, double x, double y)	Interpolate data to a station point
static String	toString_old(ucar.ma2.Array a)	Array to string
static ucar.ma2.Array	zeros(int n)	Get zero array
static ucar.ma2.Array	zeros(List<Integer> shape, String dtype)	Get zero array
static ucar.ma2.Array	zeros(List<Integer> shape, ucar.ma2.DataType dtype)	Get zero array

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

ArrayUtil

public ArrayUtil()

方法详细资料

readASCIIFile

public static ucar.ma2.Array readASCIIFile(String fileName,
                                           String delimiter,
                                           int headerLines,
                                           String dataType,
                                           List<Integer> shape,
                                           boolean readFirstCol)
                                    throws UnsupportedEncodingException,
                                           FileNotFoundException,
                                           IOException

Read ASCII data file to an array

参数:

fileName - File name

delimiter - Delimiter

headerLines - Headerline number

dataType - Data type string

shape - Shape

readFirstCol - Read first column data or not

返回:

Result array

抛出:

UnsupportedEncodingException

FileNotFoundException

IOException

numASCIIRow

public static int numASCIIRow(String fileName)
                       throws FileNotFoundException

Get row number of a ASCII file

参数:

fileName - File name

返回:

Row number

抛出:

FileNotFoundException

numASCIICol

public static int numASCIICol(String fileName,
                              String delimiter,
                              int headerLines)
                       throws FileNotFoundException,
                              IOException

Get row number of a ASCII file

参数:

fileName - File name

delimiter -

headerLines -

返回:

Row number

抛出:

FileNotFoundException

IOException

saveBinFile

public static void saveBinFile(String fn,
                               ucar.ma2.Array a,
                               String byteOrder,
                               boolean append,
                               boolean sequential)

Save an array data to a binary file

参数:

fn - File path

a - Array

byteOrder - Byte order

append - If append to existing file

sequential - If write as sequential binary file - Fortran

saveASCIIFile

public static void saveASCIIFile(String fn,
                                 ucar.ma2.Array a,
                                 int colNum,
                                 String format,
                                 String delimiter)
                          throws IOException

Save an array data to a ASCII file

参数:

fn - File path

a - Array

colNum - Column number of each line

format - String format

delimiter - Delimiter

抛出:

IOException

readBinFile

public static ucar.ma2.Array readBinFile(String fn,
                                         List<Integer> dims,
                                         String dataType,
                                         int skip,
                                         String byteOrder)

Read array from a binary file

参数:

fn - Binary file name

dims - Dimensions

dataType - Data type string

skip - Skip bytes

byteOrder - Byte order

返回:

Result array

factory

public static ucar.ma2.Array factory(ucar.ma2.DataType dt,
                                     int[] shape)

Array factory

参数:

dt - Data type

shape - Shape

返回:

Array

factory

public static ucar.ma2.Array factory(ucar.ma2.DataType dt,
                                     int[] shape,
                                     Object storage)

Array factory

参数:

dt - Data type

shape - Shape

storage - Array values

返回:

Array

array

public static ucar.ma2.Array array(Object data)

Create an array

参数:

data - Object

返回:

Array

array

public static ucar.ma2.Array array(ArrayList data)

Create an array

参数:

data - Array like data

返回:

array

public static ucar.ma2.Array array(List<Object> data)

Create an array

参数:

data - Array like data

返回:

Array

arrayRange_bak

public static ucar.ma2.Array arrayRange_bak(Number start,
                                            Number stop,
                                            Number step)

Array range

参数:

start - Start value

stop - Stop value

step - Step value

返回:

Array

arrayRange

public static ucar.ma2.Array arrayRange(Number start,
                                        Number stop,
                                        Number step)

Array range

参数:

start - Start value

stop - Stop value

step - Step value

返回:

Array

arrayRange1

public static ucar.ma2.Array arrayRange1(Number start,
                                         int length,
                                         Number step)

Array range

参数:

start - Start value

length - Length

step - Step value

返回:

Array

lineSpace

public static ucar.ma2.Array lineSpace(Number start,
                                       Number stop,
                                       int n,
                                       boolean endpoint)

Array line space

参数:

start - Start value

stop - Stop value

n - Number value

endpoint - If stop is included

返回:

Array

lineSpace_bak

public static ucar.ma2.Array lineSpace_bak(Number start,
                                           Number stop,
                                           int n,
                                           boolean endpoint)

Array line space

参数:

start - Start value

stop - Stop value

n - Number value

endpoint - If stop is included

返回:

Array

zeros

public static ucar.ma2.Array zeros(int n)

Get zero array

参数:

n - Number

返回:

Array

zeros

public static ucar.ma2.Array zeros(List<Integer> shape,
                                   String dtype)

Get zero array

参数:

shape - Shape

dtype - Data type

返回:

Array Result array

zeros

public static ucar.ma2.Array zeros(List<Integer> shape,
                                   ucar.ma2.DataType dtype)

Get zero array

参数:

shape - Shape

dtype - Data type

返回:

Array Result array

full

public static ucar.ma2.Array full(List<Integer> shape,
                                  Object fillValue,
                                  ucar.ma2.DataType dtype)

Return a new array of given shape and type, filled with fill value.

参数:

shape - Shape

fillValue - Fill value

dtype - Data type

返回:

Array Result array

ones

public static ucar.ma2.Array ones(int n)

Get ones array

参数:

n - Number

返回:

Array Result array

ones

public static ucar.ma2.Array ones(List<Integer> shape,
                                  String dtype)

Get ones array

参数:

shape - Shape

dtype - Data type

返回:

Array Result array

identity

public static ucar.ma2.Array identity(int n,
                                      String dtype)

Return the identity array - a square array with ones on the main diagonal.

参数:

n - Number of rows (and columns) in n x n output.

dtype - Data type

返回:

Identity array

eye

public static ucar.ma2.Array eye(int n,
                                 int m,
                                 int k,
                                 String dtype)

Return a 2-D array with ones on the diagonal and zeros elsewhere.

参数:

n - Number of rows in the output.

m - Number of columns in the output.

k - Index of the diagonal: 0 (the default) refers to the main diagonal, a positive value refers to an upper diagonal, and a negative value to a lower diagonal.

dtype - Data type

返回:

Created array

diag

public static ucar.ma2.Array diag(ucar.ma2.Array a,
                                  int k)

Extract a diagonal or construct a diagonal array.

参数:

a - If a is a 2-D array, return a copy of its k-th diagonal. If a is a 1-D array, return a 2-D array with a on the k-th diagonal.

k - Diagonal in question.

返回:

Diagonal array

repeat

public static ucar.ma2.Array repeat(Number v,
                                    int n)

Repeat a value n times

参数:

v - The value

n - N times

返回:

Repeated array

repeat

public static ucar.ma2.Array repeat(ucar.ma2.Array a,
                                    List<Integer> repeats)

Repeat elements of an array.

参数:

a - The value

repeats - The number of repetitions for each element

返回:

Repeated array

repeat

public static ucar.ma2.Array repeat(ucar.ma2.Array a,
                                    List<Integer> repeats,
                                    int axis)

Repeat elements of an array.

参数:

a - The value

repeats - The number of repetitions for each element

axis - The axis

返回:

Repeated array

tile

public static ucar.ma2.Array tile(Number v,
                                  int n)

Repeat a value n times

参数:

v - The value

n - N times

返回:

Repeated array

tile

public static ucar.ma2.Array tile(Number v,
                                  List<Integer> repeats)

Repeat a value n times

参数:

v - The value

repeats - The number of repetitions for each element

返回:

Repeated array

tile

public static ucar.ma2.Array tile(ucar.ma2.Array a,
                                  List<Integer> repeats)

Repeat elements of an array.

参数:

a - The value

repeats - The number of repetitions for each element

返回:

Repeated array

rand

public static double rand()

Get random value

返回:

Random value

rand

public static ucar.ma2.Array rand(int n)

Get random array - one dimension

参数:

n - Array length

返回:

Result array

rand

public static ucar.ma2.Array rand(List<Integer> shape)

Get random array

参数:

shape - Shape

返回:

Array Result array

mergeDataType

public static ucar.ma2.DataType mergeDataType(ucar.ma2.DataType dt1,
                                              ucar.ma2.DataType dt2)

Merge data type to one data type

参数:

dt1 - Data type 1

dt2 - Data type 2

返回:

Merged data type

convertToString

public static String convertToString(ucar.ma2.Array a)

Array to string

参数:

a - Array a

返回:

String

toString_old

public static String toString_old(ucar.ma2.Array a)

Array to string

参数:

a - Array a

返回:

String

getArraysFromStationData

public static List<ucar.ma2.Array> getArraysFromStationData(StationData stdata)

Get array list from StationData

参数:

stdata - StationData

返回:

Array list

dataTypeString

public static String dataTypeString(ucar.ma2.DataType dt)

Get data type string

参数:

dt - The data type

返回:

Data type string

toDataType

public static ucar.ma2.DataType toDataType(String dt)

To data type - ucar.ma2

参数:

dt - Data type string

返回:

Data type

toInteger

public static ucar.ma2.Array toInteger(ucar.ma2.Array a)

Convert array to integer type

参数:

a - Array a

返回:

Result array

toFloat

public static ucar.ma2.Array toFloat(ucar.ma2.Array a)

Convert array to float type

参数:

a - Array a

返回:

Result array

toDouble

public static ucar.ma2.Array toDouble(ucar.ma2.Array a)

Convert array to double type

参数:

a - Array a

返回:

Result array

toBoolean

public static ucar.ma2.Array toBoolean(ucar.ma2.Array a)

Convert array to boolean type

参数:

a - Array a

返回:

Result array

concatenate

public static ucar.ma2.Array concatenate(List<ucar.ma2.Array> arrays,
                                         Integer axis)
                                  throws ucar.ma2.InvalidRangeException

Concatenate arrays to one array along a axis

参数:

arrays - Array list

axis - The axis

返回:

Concatenated array

抛出:

ucar.ma2.InvalidRangeException

concatenate

public static ucar.ma2.Array concatenate(ucar.ma2.Array a,
                                         ucar.ma2.Array b,
                                         Integer axis)
                                  throws ucar.ma2.InvalidRangeException

Concatenate two arrays to one array along a axis

参数:

a - Array a

b - Array b

axis - The axis

返回:

Concatenated array

抛出:

ucar.ma2.InvalidRangeException

sort

public static ucar.ma2.Array sort(ucar.ma2.Array a,
                                  Integer axis)
                           throws ucar.ma2.InvalidRangeException

Sort array along an axis

参数:

a - Array a

axis - The axis

返回:

Sorted array

抛出:

ucar.ma2.InvalidRangeException

argSort

public static ucar.ma2.Array argSort(ucar.ma2.Array a,
                                     Integer axis)
                              throws ucar.ma2.InvalidRangeException

Get sorted array index along an axis

参数:

a - Array a

axis - The axis

返回:

Index of sorted array

抛出:

ucar.ma2.InvalidRangeException

copyToNDJavaArray

public static Object copyToNDJavaArray(ucar.ma2.Array a,
                                       String dtype)

Convert array to N-Dimension double Java array

参数:

a - Array a

dtype - Data type string

返回:

N-D Java array

copyToNDJavaArray

public static Object copyToNDJavaArray(ucar.ma2.Array a)

Convert array to N-Dimension double Java array

参数:

a - Array a

返回:

N-D Java array

copyToNDJavaArray_Long

public static Object copyToNDJavaArray_Long(ucar.ma2.Array a)

Convert array to N-Dimension double Java array

参数:

a - Array a

返回:

N-D Java array

copyToNDJavaArray_Double

public static Object copyToNDJavaArray_Double(ucar.ma2.Array a)

Convert array to N-Dimension double Java array

参数:

a - Array a

返回:

N-D Java array

copyTo1DJavaArray

protected static void copyTo1DJavaArray(ucar.ma2.IndexIterator iter,
                                        Object javaArray)

copyTo1DJavaArray_Long

protected static void copyTo1DJavaArray_Long(ucar.ma2.IndexIterator iter,
                                             Object javaArray)

delete

public static ucar.ma2.Array delete(ucar.ma2.Array a,
                                    int idx,
                                    int axis)

Return a new array with sub-arrays along an axis deleted

参数:

a - Input array

idx - Index

axis - The axis

返回:

delete

public static ucar.ma2.Array delete(ucar.ma2.Array a,
                                    List<Integer> idx,
                                    int axis)

Return a new array with sub-arrays along an axis deleted

参数:

a - Input array

idx - Index

axis - The axis

返回:

histogram

public static List<ucar.ma2.Array> histogram(ucar.ma2.Array a,
                                             int nbins)

Histogram x/y array

参数:

a - Data array

nbins - bin number

返回:

X/Y arrays

histogram

public static List<ucar.ma2.Array> histogram(ucar.ma2.Array a,
                                             ucar.ma2.Array bins)

Histogram x/y array

参数:

a - Data array

bins - bin edges

返回:

X/Y arrays

histogram

public static List<ucar.ma2.Array> histogram(ucar.ma2.Array a,
                                             double[] bins)

Histogram x/y array

参数:

a - Data array

bins - bin edges

返回:

X/Y arrays

broadcast

public static ucar.ma2.Array broadcast(ucar.ma2.Array a,
                                       int[] shape)

Broadcast array to a new shape

参数:

a - Array a

shape - Shape

返回:

Result array

broadcast

public static ucar.ma2.Array broadcast(ucar.ma2.Array a,
                                       List<Integer> shape)

Broadcast array to a new shape

参数:

a - Array a

shape - Shape

返回:

Result array

meshgrid

public static ucar.ma2.Array[] meshgrid(ucar.ma2.Array x,
                                        ucar.ma2.Array y)

Mesh grid

参数:

x - X array - vector

y - Y array - vector

返回:

Result arrays - matrix

meshgrid

public static ucar.ma2.Array[] meshgrid(ucar.ma2.Array... xs)

Mesh grid

参数:

xs - X arrays

返回:

Result arrays - matrix

meshLayer

public static VectorLayer meshLayer(ucar.ma2.Array x_s,
                                    ucar.ma2.Array y_s,
                                    ucar.ma2.Array a,
                                    LegendScheme ls,
                                    double lonlim)

Create mesh polygon layer

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

ls - Legend scheme

lonlim - Longiutde limitation - to avoid the polygon cross -180/180

返回:

Mesh polygon layer

meshLayer

public static VectorLayer meshLayer(ucar.ma2.Array x_s,
                                    ucar.ma2.Array y_s,
                                    ucar.ma2.Array a,
                                    LegendScheme ls)

Create mesh polygon layer

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

ls - Legend scheme

返回:

Mesh polygon layer

smooth5

public static ucar.ma2.Array smooth5(ucar.ma2.Array a,
                                     int rowNum,
                                     int colNum,
                                     double unDefData)

Smooth with 5 points

参数:

a - Array

rowNum - Row number

colNum - Column number

unDefData - Missing value

返回:

Result array

smooth5

public static ucar.ma2.Array smooth5(ucar.ma2.Array a)

Smooth with 5 points

参数:

a - Array

返回:

Result array

smooth9

public static ucar.ma2.Array smooth9(ucar.ma2.Array a)

Smooth with 9 points

参数:

a - Array

返回:

Result array

interpolation_IDW_Radius

public static ucar.ma2.Array interpolation_IDW_Radius(List<Number> x_s,
                                                      List<Number> y_s,
                                                      ucar.ma2.Array a,
                                                      List<Number> X,
                                                      List<Number> Y,
                                                      int NeededPointNum,
                                                      double radius)

Interpolation with IDW radius method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - grid X array

Y - grid Y array

NeededPointNum - needed at least point number

radius - search radius

返回:

interpolated grid data

interpolation_IDW_Neighbor

public static ucar.ma2.Array interpolation_IDW_Neighbor(List<Number> x_s,
                                                        List<Number> y_s,
                                                        ucar.ma2.Array a,
                                                        List<Number> X,
                                                        List<Number> Y,
                                                        int NumberOfNearestNeighbors)

Interpolation with IDW neighbor method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - grid X array

Y - grid Y array

NumberOfNearestNeighbors -

返回:

interpolated grid data

interpolation_Nearest_1

public static ucar.ma2.Array interpolation_Nearest_1(List<Number> x_s,
                                                     List<Number> y_s,
                                                     ucar.ma2.Array a,
                                                     List<Number> X,
                                                     List<Number> Y,
                                                     double radius,
                                                     double fill_value)

Interpolate with nearest method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

radius - Radius

fill_value - undefine value

返回:

grid data

interpolation_Nearest

public static ucar.ma2.Array interpolation_Nearest(List<Number> x_s,
                                                   List<Number> y_s,
                                                   ucar.ma2.Array a,
                                                   List<Number> X,
                                                   List<Number> Y,
                                                   double radius)

Interpolate with nearest method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

radius - Radius

返回:

grid data

extendHalfCell

public static ucar.ma2.Array[] extendHalfCell(ucar.ma2.Array x,
                                              ucar.ma2.Array y)

Extend the grid to half cell, so the grid points are the centers of the cells

参数:

x - Input x coordinate

y - Input y coordinate

返回:

Result x and y coordinates

interpolation_Inside

public static ucar.ma2.Array interpolation_Inside(List<Number> x_s,
                                                  List<Number> y_s,
                                                  ucar.ma2.Array a,
                                                  List<Number> X,
                                                  List<Number> Y)

Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

interpolation_Inside

public static ucar.ma2.Array interpolation_Inside(ucar.ma2.Array x_s,
                                                  ucar.ma2.Array y_s,
                                                  ucar.ma2.Array a,
                                                  ucar.ma2.Array X,
                                                  ucar.ma2.Array Y,
                                                  boolean center)

Interpolate with inside method - The grid cell value is the average value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

center - If the grid point is center or border

返回:

grid data

interpolation_Inside_Max

public static ucar.ma2.Array interpolation_Inside_Max(List<Number> x_s,
                                                      List<Number> y_s,
                                                      ucar.ma2.Array a,
                                                      List<Number> X,
                                                      List<Number> Y)

Interpolate with inside method - The grid cell value is the maximum value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

interpolation_Inside_Min

public static ucar.ma2.Array interpolation_Inside_Min(List<Number> x_s,
                                                      List<Number> y_s,
                                                      ucar.ma2.Array a,
                                                      List<Number> X,
                                                      List<Number> Y)

Interpolate with inside method - The grid cell value is the minimum value of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

interpolation_Inside_Count

public static Object interpolation_Inside_Count(List<Number> x_s,
                                                List<Number> y_s,
                                                List<Number> X,
                                                List<Number> Y,
                                                boolean pointDensity)

Interpolate with inside method - The grid cell value is the count number of the inside points or fill value if no inside point.

参数:

x_s - scatter X array

y_s - scatter Y array

X - x coordinate

Y - y coordinate

pointDensity - If return point density value

返回:

grid data

interpolation_Surface_1

public static ucar.ma2.Array interpolation_Surface_1(ucar.ma2.Array x_s,
                                                     ucar.ma2.Array y_s,
                                                     ucar.ma2.Array a,
                                                     ucar.ma2.Array X,
                                                     ucar.ma2.Array Y,
                                                     double unDefData)

Interpolate with surface method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

unDefData - undefine value

返回:

grid data

interpolation_Surface

public static ucar.ma2.Array interpolation_Surface(ucar.ma2.Array x_s,
                                                   ucar.ma2.Array y_s,
                                                   ucar.ma2.Array a,
                                                   ucar.ma2.Array X,
                                                   ucar.ma2.Array Y)

Interpolate with surface method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

interpolation_Surface_bak

public static ucar.ma2.Array interpolation_Surface_bak(ucar.ma2.Array x_s,
                                                       ucar.ma2.Array y_s,
                                                       ucar.ma2.Array a,
                                                       ucar.ma2.Array X,
                                                       ucar.ma2.Array Y)

Interpolate with surface method

参数:

x_s - scatter X array

y_s - scatter Y array

a - scatter value array

X - x coordinate

Y - y coordinate

返回:

grid data

cressman

public static ucar.ma2.Array cressman(List<Number> x_s,
                                      List<Number> y_s,
                                      ucar.ma2.Array v_s,
                                      List<Number> X,
                                      List<Number> Y,
                                      List<Number> radList)

Cressman analysis

参数:

x_s - scatter X array

y_s - scatter Y array

v_s - scatter value array

X - x array

Y - y array

radList - radii list

返回:

result grid data

cressman_bak

public static ucar.ma2.Array cressman_bak(List<Number> x_s,
                                          List<Number> y_s,
                                          ucar.ma2.Array v_s,
                                          List<Number> X,
                                          List<Number> Y,
                                          List<Number> radList)

Cressman analysis

参数:

x_s - scatter X array

y_s - scatter Y array

v_s - scatter value array

X - x array

Y - y array

radList - radii list

返回:

result grid data

linint2

public static ucar.ma2.Array linint2(ucar.ma2.Array a,
                                     ucar.ma2.Array X,
                                     ucar.ma2.Array Y,
                                     ucar.ma2.Array newX,
                                     ucar.ma2.Array newY)

Interpolates from a rectilinear grid to another rectilinear grid using bilinear interpolation.

参数:

a - The sample array

X - X coordinate of the sample array

Y - Y coordinate of the sample array

newX - X coordinate of the query points

newY - Y coordinate of the query points

返回:

Resampled array

resample_Bilinear

public static ucar.ma2.Array resample_Bilinear(ucar.ma2.Array a,
                                               List<Number> X,
                                               List<Number> Y,
                                               List<Number> newX,
                                               List<Number> newY)

Resample grid array with bilinear method

参数:

a - The sample array

X - X coordinate of the sample array

Y - Y coordinate of the sample array

newX - X coordinate of the query points

newY - Y coordinate of the query points

返回:

Resampled array

resample_Bilinear

public static ucar.ma2.Array resample_Bilinear(ucar.ma2.Array a,
                                               ucar.ma2.Array X,
                                               ucar.ma2.Array Y,
                                               ucar.ma2.Array newX,
                                               ucar.ma2.Array newY)

Resample grid array with bilinear method

参数:

a - The sample array

X - X coordinate of the sample array

Y - Y coordinate of the sample array

newX - X coordinate of the query points

newY - Y coordinate of the query points

返回:

Resampled array

resample_Neighbor

public static ucar.ma2.Array resample_Neighbor(ucar.ma2.Array a,
                                               ucar.ma2.Array X,
                                               ucar.ma2.Array Y,
                                               ucar.ma2.Array newX,
                                               ucar.ma2.Array newY)

Resample grid array with neighbor method

参数:

a - The sample array

X - X coordinate of the sample array

Y - Y coordinate of the sample array

newX - X coordinate of the query points

newY - Y coordinate of the query points

返回:

Resampled array

interpolate

public ucar.ma2.Array interpolate(ucar.ma2.Array a,
                                  List<Number> X,
                                  List<Number> Y)

Interpolate array data

参数:

a - Array

X - X coordinates

Y - Y coordinates

返回:

Result array data

interpn_s

public static double interpn_s(List<List<Number>> points,
                               ucar.ma2.Array values,
                               List<Number> xi)

Multidimensional interpolation on regular grids.

参数:

points - The points defining the regular grid in n dimensions.

values - The data on the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at

返回:

Interpolation value

interpn_s

public static double interpn_s(List<ucar.ma2.Array> points,
                               ucar.ma2.Array values,
                               ucar.ma2.Array xi)

Multidimensional interpolation on regular grids.

参数:

points - The points defining the regular grid in n dimensions.

values - The data on the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at

返回:

Interpolation value

interpn

public static ucar.ma2.Array interpn(List<ucar.ma2.Array> points,
                                     ucar.ma2.Array values,
                                     List<ucar.ma2.Array> xi)

Multidimensional interpolation on regular grids.

参数:

points - The points defining the regular grid in n dimensions.

values - The data on the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at - 2D

返回:

Interpolation value

interpn

public static Object interpn(List<ucar.ma2.Array> points,
                             ucar.ma2.Array values,
                             ucar.ma2.Array xi)
                      throws ucar.ma2.InvalidRangeException

Multidimensional interpolation on regular grids.

参数:

points - The points defining the regular grid in n dimensions.

values - The data on the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at - 2D

返回:

Interpolation value

抛出:

ucar.ma2.InvalidRangeException

findIndices

public static Object[] findIndices(List<List<Number>> points,
                                   List<Number> xi)

Find indices

参数:

points - The points defining the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at

返回:

Indices

findIndices

public static Object[] findIndices(List<ucar.ma2.Array> points,
                                   ucar.ma2.Array xi)

Find indices

参数:

points - The points defining the regular grid in n dimensions.

xi - The coordinates to sample the gridded data at

返回:

Indices

searchSorted

public static int searchSorted(List<Number> a,
                               double v)

Search sorted list index

参数:

a - Sorted list

v - value

返回:

Index

searchSorted

public static int searchSorted(ucar.ma2.Array a,
                               double v)

Search sorted list index

参数:

a - Sorted list

v - value

返回:

Index

reproject

public static ucar.ma2.Array[] reproject(ucar.ma2.Array x,
                                         ucar.ma2.Array y,
                                         ProjectionInfo toProj)

Reproject

参数:

x - X array

y - Y array

toProj - To projection

返回:

Result arrays

reproject

public static ucar.ma2.Array[] reproject(ucar.ma2.Array x,
                                         ucar.ma2.Array y,
                                         ProjectionInfo fromProj,
                                         ProjectionInfo toProj)

Reproject

参数:

x - X array

y - Y array

fromProj - From projection

toProj - To projection

返回:

Result arrays

toStation

public static double toStation(ucar.ma2.Array data,
                               List<Number> xArray,
                               List<Number> yArray,
                               double x,
                               double y,
                               double missingValue)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

missingValue - Missing value

返回:

Interpolated value

toStation

public static double toStation(ucar.ma2.Array data,
                               List<Number> xArray,
                               List<Number> yArray,
                               double x,
                               double y)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

返回:

Interpolated value

getDimIndex

public static int getDimIndex(ucar.ma2.Array dim,
                              double v)

Get value index in a dimension array

参数:

dim - Dimension array

v - The value

返回:

value index

toStation

public static double toStation(ucar.ma2.Array data,
                               ucar.ma2.Array xArray,
                               ucar.ma2.Array yArray,
                               double x,
                               double y)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

返回:

Interpolated value

toStation_Neighbor

public static double toStation_Neighbor(ucar.ma2.Array data,
                                        List<Number> xArray,
                                        List<Number> yArray,
                                        double x,
                                        double y,
                                        double missingValue)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

missingValue - Missing value

返回:

Interpolated value

toStation_Neighbor

public static double toStation_Neighbor(ucar.ma2.Array data,
                                        List<Number> xArray,
                                        List<Number> yArray,
                                        double x,
                                        double y)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

返回:

Interpolated value

toStation_Neighbor

public static double toStation_Neighbor(ucar.ma2.Array data,
                                        ucar.ma2.Array xArray,
                                        ucar.ma2.Array yArray,
                                        double x,
                                        double y)

Interpolate data to a station point

参数:

data - Data array

xArray - X array

yArray - Y array

x - X coordinate of the station

y - Y coordinate of the station

返回:

Interpolated value

reproject_back

public static Object[] reproject_back(ucar.ma2.Array data,
                                      List<Number> xx,
                                      List<Number> yy,
                                      ProjectionInfo fromProj,
                                      ProjectionInfo toProj)
                               throws ucar.ma2.InvalidRangeException

Project grid data

参数:

data - Data array

xx - X array

yy - Y array

fromProj - From projection

toProj - To projection

返回:

Porjected grid data

抛出:

ucar.ma2.InvalidRangeException

reproject

public static Object[] reproject(ucar.ma2.Array data,
                                 List<Number> xx,
                                 List<Number> yy,
                                 ProjectionInfo fromProj,
                                 ProjectionInfo toProj,
                                 ResampleMethods method)
                          throws ucar.ma2.InvalidRangeException

Project grid data

参数:

data - Data array

xx - X array

yy - Y array

fromProj - From projection

toProj - To projection

method - Resample method

返回:

Porjected grid data

抛出:

ucar.ma2.InvalidRangeException

reproject

public static Object[] reproject(ucar.ma2.Array data,
                                 List<Number> xx,
                                 List<Number> yy,
                                 ProjectionInfo fromProj,
                                 ProjectionInfo toProj)
                          throws ucar.ma2.InvalidRangeException

Project grid data

参数:

data - Data array

xx - X array

yy - Y array

fromProj - From projection

toProj - To projection

返回:

Porjected grid data

抛出:

ucar.ma2.InvalidRangeException

reproject

public static ucar.ma2.Array reproject(ucar.ma2.Array data,
                                       List<Number> x,
                                       List<Number> y,
                                       ucar.ma2.Array rx,
                                       ucar.ma2.Array ry,
                                       ProjectionInfo fromProj,
                                       ProjectionInfo toProj,
                                       double fill_value,
                                       ResampleMethods resampleMethod)
                                throws ucar.ma2.InvalidRangeException

Reproject

参数:

data - Data array

x - X array

y - Y array

rx - Result x array

ry - Result y array

fromProj - From projection

toProj - To projection

fill_value - Fill value

resampleMethod - Resample method

返回:

Result arrays

抛出:

ucar.ma2.InvalidRangeException

reproject

public static ucar.ma2.Array reproject(ucar.ma2.Array data,
                                       List<Number> x,
                                       List<Number> y,
                                       ucar.ma2.Array rx,
                                       ucar.ma2.Array ry,
                                       ProjectionInfo fromProj,
                                       ProjectionInfo toProj,
                                       ResampleMethods resampleMethod)
                                throws ucar.ma2.InvalidRangeException

Reproject

参数:

data - Data array

x - X array

y - Y array

rx - Result x array

ry - Result y array

fromProj - From projection

toProj - To projection

resampleMethod - Resample method

返回:

Result arrays

抛出:

ucar.ma2.InvalidRangeException

reproject

public static ucar.ma2.Array reproject(ucar.ma2.Array data,
                                       List<Number> x,
                                       List<Number> y,
                                       List<Number> rx,
                                       List<Number> ry,
                                       ProjectionInfo fromProj,
                                       ProjectionInfo toProj,
                                       double fill_value,
                                       ResampleMethods resampleMethod)

Reproject

参数:

data - Data array

x - X array

y - Y array

rx - Result x array

ry - Result y array

fromProj - From projection

toProj - To projection

fill_value - Fill value

resampleMethod - Resample method

返回:

Result arrays

convexHull

public static PolygonShape convexHull(ucar.ma2.Array x,
                                      ucar.ma2.Array y)

Computes the smallest convex Polygon that contains all the points

参数:

x - X array

y - Y array

返回:

PolygonShape