org.encog.util.csv

Class ReadCSV

java.lang.Object

org.encog.util.csv.ReadCSV

public class ReadCSV
extends Object

Read and parse CSV format files.

Constructor Summary

Constructors

Constructor and Description
ReadCSV(File file, boolean headers, char delim) Construct a CSV reader from a filename.
ReadCSV(File file, boolean headers, CSVFormat format) Construct a CSV reader from a filename.
ReadCSV(InputStream is, boolean headers, char delim) Construct a CSV reader from an input stream.
ReadCSV(InputStream is, boolean headers, CSVFormat format) Construct a CSV reader from an input stream.
ReadCSV(String filename, boolean headers, char delim)
ReadCSV(String filename, boolean headers, CSVFormat format)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close the file.
static String	displayDate(Date date) Format a date.
String	get(int i) Get the specified column as a string.
String	get(String column) Get the column by its string name, as a string.
int	getColumnCount() Get the column count.
List<String>	getColumnNames()
Date	getDate(String column) Get the column as a date.
double	getDouble(int index) Get the column as a double specified by index.
double	getDouble(String column) Get the specified column as a double.
CSVFormat	getFormat()
int	getInt(int i) Obtain a column as an integer referenced by a string.
boolean	hasMissing()
boolean	next() Read the next line.
static Date	parseDate(String when) Parse a date.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadCSV

public ReadCSV(InputStream is,
       boolean headers,
       char delim)

Construct a CSV reader from an input stream. Allows a delimiter character to be specified. Numbers will be parsed using the current locale.

Parameters:

is - The InputStream to read from.

headers - Are headers present?

delim - What is the delimiter.

ReadCSV

public ReadCSV(InputStream is,
       boolean headers,
       CSVFormat format)

Construct a CSV reader from an input stream. The format parameter specifies the separator character to use, as well as the number format.

Parameters:

is - The InputStream to read from.

headers - Are headers present?

format - What is the CSV format.

ReadCSV

public ReadCSV(File file,
       boolean headers,
       char delim)

Construct a CSV reader from a filename. The format parameter specifies the separator character to use, as well as the number format.

Parameters:

filename - The filename.

headers - The headers.

delim - The delimiter.

ReadCSV

public ReadCSV(String filename,
       boolean headers,
       char delim)

ReadCSV

public ReadCSV(String filename,
       boolean headers,
       CSVFormat format)

ReadCSV

public ReadCSV(File file,
       boolean headers,
       CSVFormat format)

Construct a CSV reader from a filename. Allows a delimiter character to be specified.

Parameters:

filename - The filename.

headers - The headers.

format - The format.

Method Detail

displayDate

public static String displayDate(Date date)

Format a date.

Parameters:

date - The date to format.

Returns:

The formatted date.

parseDate

public static Date parseDate(String when)

Parse a date.

Parameters:

when - The date string.

Returns:

The parsed date.

close

public void close()

Close the file.

get

public String get(int i)

Get the specified column as a string.

Parameters:

i - The column index, starting at zero.

Returns:

The column as a string.

get

public String get(String column)

Get the column by its string name, as a string. This will only work if column headers were defined that have string names.

Parameters:

column - The column name.

Returns:

The column data as a string.

getColumnCount

public int getColumnCount()

Get the column count.

Returns:

The column count.

getDate

public Date getDate(String column)

Get the column as a date.

Parameters:

column - The column header name.

Returns:

The column as a date.

getDouble

public double getDouble(int index)

Get the column as a double specified by index.

Parameters:

index - The column index, starting at zero.

Returns:

The data at the specified column.

getDouble

public double getDouble(String column)

Get the specified column as a double.

Parameters:

column - The column name that we want to get.

Returns:

The column data as a double.

getInt

public int getInt(int i)

Obtain a column as an integer referenced by a string.

Parameters:

i - The column header name being read.

Returns:

The column data as an integer.

next

public boolean next()

Read the next line.

Returns:

True if there are more lines to read.

getColumnNames

public List<String> getColumnNames()

getFormat

public CSVFormat getFormat()

hasMissing

public boolean hasMissing()