A C D E G H I K L M N O P Q R S T U W Z

A

assertCountable(SimpleMatrix) - Static method in class org.ejml.simple.SimpleUnitTests

Checks to see if every element in A is countable.

assertEquals(SimpleMatrix, SimpleMatrix, double) - Static method in class org.ejml.simple.SimpleUnitTests

Checks to see if each element in the matrices are within tolerance of each other and countable:

assertEqualsUncountable(SimpleMatrix, SimpleMatrix, double) - Static method in class org.ejml.simple.SimpleUnitTests

Checks to see if each element in the matrix is within tolerance of each other:

assertShape(SimpleMatrix, SimpleMatrix) - Static method in class org.ejml.simple.SimpleUnitTests

Checks to see if A and B have the same shape.

C

combine(int, int, T) - Method in class org.ejml.simple.SimpleBase

Creates a new matrix that is a combination of this matrix and matrix B.

conditionP2() - Method in class org.ejml.simple.SimpleBase

The condition p = 2 number of a matrix is used to measure the sensitivity of the linear system Ax=b.

convertSimple(BlockMatrix64F) - Static method in class org.ejml.simple.UtilSimpleMatrix

Converts the block matrix into a SimpleMatrix.

copy() - Method in class org.ejml.simple.SimpleBase

Creates and returns a matrix which is idential to this one.

createMatrix(int, int) - Method in class org.ejml.simple.SimpleBase

Used internally for creating new instances of SimpleMatrix.

createMatrix(int, int) - Method in class org.ejml.simple.SimpleMatrix

D

determinant() - Method in class org.ejml.simple.SimpleBase

Computes the determinant of the matrix.

diag(double...) - Static method in class org.ejml.simple.SimpleMatrix

Creates a matrix where all but the diagonal elements are zero.

divide(double) - Method in class org.ejml.simple.SimpleBase

Returns the result of dividing each element by 'val': b_i,j = a_i,j/val

dot(T) - Method in class org.ejml.simple.SimpleBase

Computes the dot product (a.k.a.

E

eig() - Method in class org.ejml.simple.SimpleBase

Returns the Eigen Value Decomposition (EVD) of this matrix.

elementDiv(T) - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element division of 'this' and 'b': c_i,j = a_i,j/b_i,j

elementExp() - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element exp of 'this' c_i,j = Math.exp(a_i,j)

elementLog() - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element exp of 'this' c_i,j = Math.log(a_i,j)

elementMaxAbs() - Method in class org.ejml.simple.SimpleBase

Returns the maximum absolute value of all the elements in this matrix.

elementMult(T) - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element multiplication of 'this' and 'b': c_i,j = a_i,j*b_i,j

elementPower(T) - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element power of 'this' and 'b': c_i,j = a_i,j ^ b_i,j

elementPower(double) - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of an element by element power of 'this' and 'b': c_i,j = a_i,j ^ b

elementSum() - Method in class org.ejml.simple.SimpleBase

Computes the sum of all the elements in the matrix.

END - Static variable in class org.ejml.simple.SimpleMatrix

A simplified way to reference the last row or column in the matrix for some functions.

extractDiag() - Method in class org.ejml.simple.SimpleBase

Extracts the diagonal from this matrix and returns them inside a column vector.

extractMatrix(int, int, int, int) - Method in class org.ejml.simple.SimpleBase

Creates a new SimpleMatrix which is a submatrix of this matrix.

extractVector(boolean, int) - Method in class org.ejml.simple.SimpleBase

Extracts a row or column from this matrix.

G

get(int, int) - Method in class org.ejml.simple.SimpleBase

Returns the value of the specified matrix element.

get(int) - Method in class org.ejml.simple.SimpleBase

Returns the value of the matrix at the specified index of the 1D row major array.

getEigenvalue(int) - Method in class org.ejml.simple.SimpleEVD

Returns an eigenvalue as a complex number.

getEigenVector(int) - Method in class org.ejml.simple.SimpleEVD

Used to retrieve real valued eigenvectors.

getEVD() - Method in class org.ejml.simple.SimpleEVD

Returns the underlying decomposition that this is a wrapper around.

getIndex(int, int) - Method in class org.ejml.simple.SimpleBase

Returns the index in the matrix's array.

getIndexMax() - Method in class org.ejml.simple.SimpleEVD

Returns the index of the eigenvalue which has the largest magnitude.

getIndexMin() - Method in class org.ejml.simple.SimpleEVD

Returns the index of the eigenvalue which has the smallest magnitude.

getMatrix() - Method in class org.ejml.simple.SimpleBase

Returns a reference to the matrix that it uses internally.

getNumberOfEigenvalues() - Method in class org.ejml.simple.SimpleEVD

Returns the number of eigenvalues/eigenvectors.

getNumElements() - Method in class org.ejml.simple.SimpleBase

Returns the number of elements in this matrix, which is equal to the number of rows times the number of columns.

getSingleValue(int) - Method in class org.ejml.simple.SimpleSVD

Returns the specified singular value.

getSVD() - Method in class org.ejml.simple.SimpleSVD

Returns the underlying decomposition that this is a wrapper around.

getU() - Method in class org.ejml.simple.SimpleSVD

Returns the orthogonal 'U' matrix.

getV() - Method in class org.ejml.simple.SimpleSVD

Returns the orthogonal 'V' matrix.

getW() - Method in class org.ejml.simple.SimpleSVD

Returns a diagonal matrix with the singular values.

H

hasUncountable() - Method in class org.ejml.simple.SimpleBase

Checks to see if any of the elements in this matrix are either NaN or infinite.

I

identity(int) - Static method in class org.ejml.simple.SimpleMatrix

Creates a new identity matrix with the specified size.

insertIntoThis(int, int, T) - Method in class org.ejml.simple.SimpleBase

Copy matrix B into this matrix at location (insertRow, insertCol).

invert() - Method in class org.ejml.simple.SimpleBase

Returns the inverse of this matrix.

b = a^-1

isIdentical(T, double) - Method in class org.ejml.simple.SimpleBase

Checks to see if matrix 'a' is the same as this matrix within the specified tolerance.

isInBounds(int, int) - Method in class org.ejml.simple.SimpleBase

Returns true of the specified matrix element is valid element inside this matrix.

isVector() - Method in class org.ejml.simple.SimpleBase

Returns true if this matrix is a vector.

iterator(boolean, int, int, int, int) - Method in class org.ejml.simple.SimpleBase

Creates a new iterator for traversing through a submatrix inside this matrix.

K

kron(T) - Method in class org.ejml.simple.SimpleBase

Computes the Kronecker product between this matrix and the provided B matrix:

C = kron(A,B)

L

loadBinary(String) - Static method in class org.ejml.simple.SimpleBase

Loads a new matrix from a serialized binary file.

loadCSV(String) - Method in class org.ejml.simple.SimpleBase

Loads a new matrix from a CSV file.

M

mat - Variable in class org.ejml.simple.SimpleBase

Internal matrix which this is a wrapper around.

minus(T) - Method in class org.ejml.simple.SimpleBase

Returns the result of matrix subtraction:

c = a - b

where c is the returned matrix, a is this matrix, and b is the passed in matrix.

minus(double) - Method in class org.ejml.simple.SimpleBase

Returns the result of matrix-double subtraction:

c = a - b

where c is the returned matrix, a is this matrix, and b is the passed in double.

mult(T) - Method in class org.ejml.simple.SimpleBase

Returns a matrix which is the result of matrix multiplication:

c = a * b

where c is the returned matrix, a is this matrix, and b is the passed in matrix.

N

negative() - Method in class org.ejml.simple.SimpleBase

Returns a new matrix whose elements are the negative of 'this' matrix's elements.

b_ij = -a_ij

normF() - Method in class org.ejml.simple.SimpleBase

Computes the Frobenius normal of the matrix:

normF = Sqrt{ ∑_i=1:m ∑_j=1:n { a_ij²} }

nullity() - Method in class org.ejml.simple.SimpleSVD

The nullity of the decomposed matrix.

nullSpace() - Method in class org.ejml.simple.SimpleSVD

Computes the null space from an SVD.

numCols() - Method in class org.ejml.simple.SimpleBase

Returns the number of columns in this matrix.

numRows() - Method in class org.ejml.simple.SimpleBase

Returns the number of rows in this matrix.

O

org.ejml.simple - package org.ejml.simple

P

plus(T) - Method in class org.ejml.simple.SimpleBase

Returns the result of matrix addition:

c = a + b

where c is the returned matrix, a is this matrix, and b is the passed in matrix.

plus(double) - Method in class org.ejml.simple.SimpleBase

Performs a element-wise scale operation.

c = β*a

where c is the returned matrix, a is this matrix.

plus(double, T) - Method in class org.ejml.simple.SimpleBase

Performs a matrix addition and scale operation.

c = a + β*b

where c is the returned matrix, a is this matrix, and b is the passed in matrix.

print() - Method in class org.ejml.simple.SimpleBase

Prints the matrix to standard out.

print(int, int) - Method in class org.ejml.simple.SimpleBase

Prints the matrix to standard out with the specified precision.

print(String) - Method in class org.ejml.simple.SimpleBase

Prints the matrix to standard out given a {@link java.io.PrintStream#printf) style floating point format, e.g.

printDimensions() - Method in class org.ejml.simple.SimpleBase

Prints the number of rows and column in this matrix.

pseudoInverse() - Method in class org.ejml.simple.SimpleBase

Computes the Moore-Penrose pseudo-inverse

Q

quality() - Method in class org.ejml.simple.SimpleEVD

Computes the quality of the computed decomposition.

quality() - Method in class org.ejml.simple.SimpleSVD

Computes the quality of the computed decomposition.

R

random(int, int, double, double, Random) - Static method in class org.ejml.simple.SimpleMatrix

Creates a new SimpleMatrix with random elements drawn from a uniform distribution from minValue to maxValue.

randomNormal(SimpleMatrix, Random) - Static method in class org.ejml.simple.SimpleMatrix

Creates a new vector which is drawn from a multivariate normal distribution with zero mean and the provided covariance.

rank() - Method in class org.ejml.simple.SimpleSVD

Returns the rank of the decomposed matrix.

reshape(int, int) - Method in class org.ejml.simple.SimpleBase

Reshapes the matrix to the specified number of rows and columns.

S

saveToFileBinary(String) - Method in class org.ejml.simple.SimpleBase

Saves this matrix to a file as a serialized binary object.

saveToFileCSV(String) - Method in class org.ejml.simple.SimpleBase

Saves this matrix to a file in a CSV format.

scale(double) - Method in class org.ejml.simple.SimpleBase

Returns the result of scaling each element by 'val':
b_i,j = val*a_i,j

set(T) - Method in class org.ejml.simple.SimpleBase

Sets the elements in this matrix to be equal to the elements in the passed in matrix.

set(double) - Method in class org.ejml.simple.SimpleBase

Sets all the elements in this matrix equal to the specified value.

a_ij = val

set(int, int, double) - Method in class org.ejml.simple.SimpleBase

Assigns the element in the Matrix to the specified value.

set(int, double) - Method in class org.ejml.simple.SimpleBase

Assigns an element a value based on its index in the internal array..

setColumn(int, int, double...) - Method in class org.ejml.simple.SimpleBase

Assigns consecutive elements inside a column to the provided array.

A(offset:(offset + values.length),column) = values

setRow(int, int, double...) - Method in class org.ejml.simple.SimpleBase

Assigns consecutive elements inside a row to the provided array.

A(row,offset:(offset + values.length)) = values

SimpleBase<T extends SimpleBase> - Class in org.ejml.simple

Parent of SimpleMatrix implements all the standard matrix operations and uses generics to allow the returned matrix type to be changed.

SimpleBase(int, int) - Constructor for class org.ejml.simple.SimpleBase

SimpleBase() - Constructor for class org.ejml.simple.SimpleBase

SimpleEVD<T extends SimpleMatrix> - Class in org.ejml.simple

Wrapper around EigenDecomposition for SimpleMatrix

SimpleEVD(DenseMatrix64F) - Constructor for class org.ejml.simple.SimpleEVD

SimpleMatrix - Class in org.ejml.simple

SimpleMatrix is a wrapper around DenseMatrix64F that provides an easy to use object oriented interface for performing matrix operations.

SimpleMatrix(int, int, boolean, double...) - Constructor for class org.ejml.simple.SimpleMatrix

Creates a new matrix which has the same value as the matrix encoded in the provided array.

SimpleMatrix(double[][]) - Constructor for class org.ejml.simple.SimpleMatrix

Creates a matrix with the values and shape defined by the 2D array 'data'.

SimpleMatrix(int, int) - Constructor for class org.ejml.simple.SimpleMatrix

Creates a new matrix that is initially set to zero with the specified dimensions.

SimpleMatrix(SimpleMatrix) - Constructor for class org.ejml.simple.SimpleMatrix

Creats a new SimpleMatrix which is identical to the original.

SimpleMatrix(DenseMatrix64F) - Constructor for class org.ejml.simple.SimpleMatrix

Creates a new SimpleMatrix which is a copy of the DenseMatrix64F.

SimpleMatrix(RealMatrix64F) - Constructor for class org.ejml.simple.SimpleMatrix

Creates a new SimpleMatrix which is a copy of the Matrix64F.

SimpleMatrix() - Constructor for class org.ejml.simple.SimpleMatrix

Constructor for internal library use only.

SimpleSVD<T extends SimpleMatrix> - Class in org.ejml.simple

Wrapper around SVD for simple matrix.

SimpleSVD(DenseMatrix64F, boolean) - Constructor for class org.ejml.simple.SimpleSVD

SimpleUnitTests - Class in org.ejml.simple

Unit testing functions for SimpleMatrix

SimpleUnitTests() - Constructor for class org.ejml.simple.SimpleUnitTests

solve(T) - Method in class org.ejml.simple.SimpleBase

Solves for X in the following equation:

x = a^-1b

where 'a' is this matrix and 'b' is an n by p matrix.

svd() - Method in class org.ejml.simple.SimpleBase

Computes a full Singular Value Decomposition (SVD) of this matrix with the eigenvalues ordered from largest to smallest.

svd(boolean) - Method in class org.ejml.simple.SimpleBase

Computes the SVD in either compact format or full format.

T

toString() - Method in class org.ejml.simple.SimpleBase

Converts the array into a string format for display purposes.

trace() - Method in class org.ejml.simple.SimpleBase

Computes the trace of the matrix.

transpose() - Method in class org.ejml.simple.SimpleBase

Returns the transpose of this matrix.
a^T

U

UtilSimpleMatrix - Class in org.ejml.simple

UtilSimpleMatrix() - Constructor for class org.ejml.simple.UtilSimpleMatrix

W

wrap(DenseMatrix64F) - Static method in class org.ejml.simple.SimpleMatrix

Creates a new SimpleMatrix with the specified DenseMatrix64F used as its internal matrix.

Z

zero() - Method in class org.ejml.simple.SimpleBase

Sets all the elements in the matrix equal to zero.

A C D E G H I K L M N O P Q R S T U W Z