gensvm_cross_validation.c File Reference

Function for running cross validation on GenModel. More...

#include "gensvm_cross_validation.h"

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Functions
double	gensvm_cross_validation (struct GenModel *model, struct GenData **train_folds, struct GenData **test_folds, long folds, long n_total)
	Run cross validation with a given set of train/test folds. More...

Variables
FILE *	GENSVM_OUTPUT_FILE

Detailed Description

Function for running cross validation on GenModel.

Author

G.J.J. van den Burg

Date

2016-10-24

Copyright

Copyright 2016, G.J.J. van den Burg.

This file is part of GenSVM.

GenSVM is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

GenSVM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GenSVM. If not, see http://www.gnu.org/licenses/.

Definition in file gensvm_cross_validation.c.

Function Documentation

gensvm_cross_validation()

double gensvm_cross_validation	(	struct GenModel *	model,
		struct GenData **	train_folds,
		struct GenData **	test_folds,
		long	folds,
		long	n_total
	)

Run cross validation with a given set of train/test folds.

This cross validation function uses predefined train/test splits. Also, the the optimal parameters GenModel::V of a previous fold as initial conditions for GenModel::V of the next fold.

Note

This function always sets the output stream defined in GENSVM_OUTPUT_FILE to NULL, to ensure gensvm_optimize() doesn't print too much.

Parameters

[in]	model	GenModel with the configuration to train
[in]	train_folds	array of training datasets
[in]	test_folds	array of test datasets
[in]	folds	number of folds
[in]	n_total	number of objects in the union of the train datasets

Returns

performance (hitrate) of the configuration on cross validation

Definition at line 52 of file gensvm_cross_validation.c.

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Variable Documentation

GENSVM_OUTPUT_FILE

FILE* GENSVM_OUTPUT_FILE

The GENSVM_OUTPUT_FILE specifies the output stream to which all output is written. This is done through the function note(). The advantage of using a global output stream variable is that the output can temporarily be suppressed by importing this variable through extern and (temporarily) setting it to NULL.

Definition at line 33 of file gensvm_print.c.