NAME

find_in_matrix_by_cols - Finds columns in a matrix.

SYNOPSIS

#include "m/m_find.h"

Example compile flags (system dependent):
  -DLINUX_X86_64 -DLINUX_X86_64_OPTERON  -DGNU_COMPILER 
   -I/home/kobus/include
   -L/home/kobus/misc/load/linux_x86_64_opteron -L/usr/lib/x86_64-linux-gnu
  -lKJB                               -lfftw3  -lgsl -lgslcblas -ljpeg  -lSVM -lstdc++                    -lpthread -lSLATEC -lg2c    -lacml -lacml_mv -lblas -lg2c      -lncursesw 


int find_in_matrix_by_cols
(
	Int_vector **indices,
	const Matrix *mp,
	int (*predicate)(const Matrix *,int,void *),
	void *params
);

DESCRIPTION

This routine searches the matrix mp for columns which return 1 on the given predicate. That is, colunm index i is inserted in *indices if and only if predicate(mp, i, ...) returns 1. *indices is an integer vector that holds all column indices which fulfill the mentioned condition. *indices can then be used as input to any of the copy functions. If *indices is NULL, it is created; if it is the wrong size, it is resized; finally, if it is the right size, the storage is recycled, as is.

RETURNS

NO_ERROR on success, and ERROR on failure, with an error being set.

DISCLAIMER

This software is not adequatedly tested. It is recomended that results are checked independantly where appropriate.

AUTHOR

Ernesto Brau

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