ubic.basecode.math

Class MatrixRowStats

java.lang.Object

ubic.basecode.math.MatrixRowStats

public class MatrixRowStats
extends Object

Convenience functions for getting row statistics from matrices.

Author:

Paul Pavlidis

Method Summary

Modifier and Type	Method and Description
static <R,C> cern.colt.list.DoubleArrayList	means(DoubleMatrix<R,C> M) Calculates the means of a matrix's rows.
static cern.colt.matrix.DoubleMatrix1D	means(cern.colt.matrix.DoubleMatrix2D e) Calculate the means of a matrix's rows
static <R,C> cern.colt.list.DoubleArrayList	sampleStandardDeviations(DoubleMatrix<R,C> M) Calculates the sample standard deviation of each row of a matrix
static <R,C> cern.colt.list.DoubleArrayList	sumOfSquares(DoubleMatrix<R,C> M) Calculates the sum of squares for each row of a matrix
static <R,C> cern.colt.list.DoubleArrayList	sums(DoubleMatrix<R,C> M) Calculate the sums of a matrix's rows.

Methods inherited from class java.lang.Object

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

Method Detail

means

public static <R,C> cern.colt.list.DoubleArrayList means(DoubleMatrix<R,C> M)

Calculates the means of a matrix's rows.

Parameters:

M - DoubleMatrixNamed

Returns:

DoubleArrayList

means

public static cern.colt.matrix.DoubleMatrix1D means(cern.colt.matrix.DoubleMatrix2D e)

Calculate the means of a matrix's rows

Parameters:

e - matrix. Missing values are ignored.

Returns:

vector of length equal to number of e's rows

sampleStandardDeviations

public static <R,C> cern.colt.list.DoubleArrayList sampleStandardDeviations(DoubleMatrix<R,C> M)

Calculates the sample standard deviation of each row of a matrix

Parameters:

M - DoubleMatrixNamed

Returns:

DoubleArrayList

sumOfSquares

public static <R,C> cern.colt.list.DoubleArrayList sumOfSquares(DoubleMatrix<R,C> M)

Calculates the sum of squares for each row of a matrix

Parameters:

M - DoubleMatrixNamed

Returns:

DoubleArrayList

sums

public static <R,C> cern.colt.list.DoubleArrayList sums(DoubleMatrix<R,C> M)

Calculate the sums of a matrix's rows.

Parameters:

M - DoubleMatrixNamed

Returns:

DoubleArrayList