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ols_test_main.cc
/*************************************************************************/
/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
/* Copyright (c) 1998 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, subject to */
/* the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK */
/* DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING */
/* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT */
/* SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE */
/* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES */
/* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN */
/* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, */
/* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF */
/* THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author : Alan W Black */
/* Date : January 1998 */
/*-----------------------------------------------------------------------*/
/* A program for testing a OLS */
/* */
/*=======================================================================*/
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <cstring>
#include "EST_Wagon.h"
#include "EST_cutils.h"
#include "EST_multistats.h"
#include "EST_Token.h"
#include "EST_cmd_line.h"
static int ols_test_main(int argc, char **argv);
static void load_ols_data(EST_FMatrix &X, EST_FMatrix &Y, WDataSet &d);
/** @name <command>ols_test</command> <emphasis>Test linear regression model</emphasis>
@id ols-test-manual
* @toc
*/
//@{
/**@name Synopsis
*/
//@{
//@synopsis
/**
*/
//@}
/**@name OPTIONS
*/
//@{
//@options
//@}
int main(int argc, char **argv)
{
ols_test_main(argc,argv);
exit(0);
return 0;
}
static int ols_test_main(int argc, char **argv)
{
// Top level function sets up data and creates a tree
EST_Option al;
EST_StrList files;
EST_FMatrix X,Y,coeffs;
WDataSet dataset;
EST_String outfile;
parse_command_line
(argc, argv,
EST_String("[options]\n")+
"ols_test <options>\n"+
"program to test OLS on data\n"+
"-desc <ifile> Field description file\n"+
"-data <ifile> Datafile, one vector per line\n"+
"-coeffs <ifile> File containing OLS coefficients\n"+
"-predict Predict for each vector returning value\n"+
"-o <ofile> File to save output in\n",
files, al);
siod_init();
if (al.present("-desc"))
{
dataset.load_description(al.val("-desc"),NIL);
}
else
{
cerr << argv[0] << ": no description file specified" << endl;
exit(-1);
}
if (coeffs.load(al.val("-coeffs")) != format_ok)
{
cerr << argv[0] << ": no coefficients file specified" << endl;
exit(-1);
}
if (al.present("-data"))
wgn_load_dataset(dataset,al.val("-data"));
else
{
cerr << argv[0] << ": no data file specified" << endl;
exit(-1);
}
if (al.present("-o"))
outfile = al.val("-o");
else
outfile = "-";
EST_FMatrix pred;
float cor,rmse;
load_ols_data(X,Y,dataset);
ols_apply(X,coeffs,pred);
if (ols_test(Y,pred,cor,rmse))
printf(";; RMSE %f Correlation is %f\n",rmse,cor);
else
printf(";; varation too small RMSE %f but no correlation\n",rmse);
if (al.present("-o") || al.present("-predict"))
pred.save(outfile);
return 0;
}
static void load_ols_data(EST_FMatrix &X, EST_FMatrix &Y, WDataSet &d)
{
EST_Litem *p;
int n,m;
X.resize(d.length(),d.width());
Y.resize(d.length(),1);
for (n=0,p=d.head(); p != 0; p=p->next(),n++)
{
Y(n,0) = d(p)->get_flt_val(0);
X(n,0) = 1;
for (m=1; m < d.width(); m++)
X(n,m) = d(p)->get_flt_val(m);
}
}
EST_FMatrix
Definition EST_FMatrix.h:56
EST_FMatrix::save
EST_write_status save(const EST_String &filename, const EST_String &type=EST_FMatrix::default_file_type)
Save in file (ascii or binary).
Definition EST_FMatrix.cc:340
EST_FMatrix::load
EST_read_status load(const EST_String &filename)
Load from file (ascii or binary as defined in file).
Definition EST_FMatrix.cc:513
EST_Option
Definition EST_Option.h:50
EST_String
Definition EST_String.h:70
EST_TKVL::val
const V & val(const K &rkey, bool m=0) const
return value according to key (const)
Definition EST_TKVL.cc:145
EST_TKVL::present
const int present(const K &rkey) const
Returns true if key is present.
Definition EST_TKVL.cc:222
EST_TSimpleMatrix::resize
void resize(int rows, int cols, int set=1)
resize matrix
Definition EST_TSimpleMatrix.cc:86
WDataSet
Definition EST_Wagon.h:86