DGtal 1.3.0
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Functions
testStatistics.cpp File Reference
#include <iostream>
#include <vector>
#include "DGtal/math/Statistic.h"

Go to the source code of this file.

Functions

bool testStatistics ()
 
bool testStatisticsSaving ()
 
int main (int argc, char **argv)
 

Detailed Description

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

This program 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 this program. If not, see http://www.gnu.org/licenses/.

Author
David Coeurjolly (david.nosp@m..coe.nosp@m.urjol.nosp@m.ly@l.nosp@m.iris..nosp@m.cnrs.nosp@m..fr ) Laboratoire d'InfoRmatique en Image et Systèmes d'information - LIRIS (CNRS, UMR 5205), CNRS, France
Date
2011/06/24

Functions for testing class Statistics.

This file is part of the DGtal library.

Definition in file testStatistics.cpp.

Function Documentation

◆ main()

int main ( int  argc,
char **  argv 
)

Definition at line 118 of file testStatistics.cpp.

119{
120 trace.beginBlock ( "Testing class Statistics" );
121 trace.info() << "Args:";
122 for ( int i = 0; i < argc; ++i )
123 trace.info() << " " << argv[ i ];
124 trace.info() << endl;
125
126 bool res = testStatistics(); // && ... other tests
127 trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
128
129 trace.beginBlock ( "Testing class Statistics (with option for saving samples)" );
130 trace.info() << "Args:";
131 for ( int i = 0; i < argc; ++i )
132 trace.info() << " " << argv[ i ];
133 trace.info() << endl;
134
135 bool res2 = testStatisticsSaving(); // && ... other tests
136 trace.emphase() << ( res2 ? "Passed." : "Error." ) << endl;
137
138
139 trace.endBlock();
140 return (res &&res2) ? 0 : 1;
141}
void beginBlock(const std::string &keyword="")
std::ostream & emphase()
std::ostream & info()
double endBlock()
Trace trace
Definition: Common.h:154
bool testStatistics()
bool testStatisticsSaving()

References DGtal::Trace::beginBlock(), DGtal::Trace::emphase(), DGtal::Trace::endBlock(), DGtal::Trace::info(), testStatistics(), testStatisticsSaving(), and DGtal::trace.

◆ testStatistics()

bool testStatistics ( )

Example of a test. To be completed.

Definition at line 47 of file testStatistics.cpp.

48{
49 unsigned int nbok = 0;
50 unsigned int nb = 3;
51
52 trace.beginBlock ( "Testing Statistics ..." );
53
55
56 for(unsigned int k=0; k < 1000; k++)
57 stat.addValue((double)k);
58
59 stat.terminate();
60
61 trace.info() << "Mean value = "<<stat.mean() << std::endl;
62 nbok += (stat.mean()==499.5) ? 1 : 0;
63 trace.info() << "Variance value = "<<stat.variance()<<std::endl;
64 trace.info() << "Max value = "<<stat.max()<<std::endl;
65 nbok += (stat.max()==999) ? 1 : 0;
66 trace.info() << "Min value = "<<stat.min()<<std::endl;
67 nbok += (stat.min()==0) ? 1 : 0;
68
69 trace.info() << "(" << nbok << "/" << nb << ") "
70 << "true == true" << std::endl;
72
73 return nbok == nb;
74}
Aim: This class processes a set of sample values for one variable and can then compute different stat...
Definition: Statistic.h:70
double variance() const
double mean() const
Quantity max() const
Quantity min() const
void addValue(Quantity v)

References DGtal::Statistic< TQuantity >::addValue(), DGtal::Trace::beginBlock(), DGtal::Trace::endBlock(), DGtal::Trace::info(), DGtal::Statistic< TQuantity >::max(), DGtal::Statistic< TQuantity >::mean(), DGtal::Statistic< TQuantity >::min(), DGtal::Statistic< TQuantity >::terminate(), DGtal::trace, and DGtal::Statistic< TQuantity >::variance().

Referenced by main().

◆ testStatisticsSaving()

bool testStatisticsSaving ( )

Example of a test. To be completed.

Definition at line 80 of file testStatistics.cpp.

81{
82 unsigned int nbok = 0;
83 unsigned int nb = 4;
84
85 trace.beginBlock ( "Testing Statistics with saving option ..." );
86
87 Statistic<double> stat(true);
88
89
90 for(unsigned int k=0; k < 100; k++)
91 stat.addValue(99);
92 stat.addValue(88);
93 for(unsigned int k=0; k < 100; k++)
94 stat.addValue(77);
95
96 stat.terminate();
97
98 trace.info() << "Mean value = "<<stat.mean() << std::endl;
99 nbok += (stat.mean()==88) ? 1 : 0;
100 trace.info() << "Variance value = "<<stat.variance()<<std::endl;
101 trace.info() << "Max value = "<<stat.max()<<std::endl;
102 nbok += (stat.max()==99) ? 1 : 0;
103 trace.info() << "Min value = "<<stat.min()<<std::endl;
104 nbok += (stat.min()==77) ? 1 : 0;
105 trace.info() << "Median value = "<<stat.median()<<std::endl;
106 nbok += (stat.median()==88) ? 1 : 0;
107
108 trace.info() << "(" << nbok << "/" << nb << ") "
109 << "true == true" << std::endl;
110 trace.endBlock();
111
112 return nbok == nb;
113}

References DGtal::Statistic< TQuantity >::addValue(), DGtal::Trace::beginBlock(), DGtal::Trace::endBlock(), DGtal::Trace::info(), DGtal::Statistic< TQuantity >::max(), DGtal::Statistic< TQuantity >::mean(), DGtal::Statistic< TQuantity >::median(), DGtal::Statistic< TQuantity >::min(), DGtal::Statistic< TQuantity >::terminate(), DGtal::trace, and DGtal::Statistic< TQuantity >::variance().

Referenced by main().