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histogram class and associated plotting functions

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This commit is contained in:
Antonin Portelli
2015-09-28 18:18:54 +01:00
committed by Antonin Portelli
parent 918e1c7ce8
commit c672c33189
6 changed files with 260 additions and 5 deletions
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27
examples/exRand.cpp
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@ -1,19 +1,25 @@
#include <iostream>
#include <LatAnalyze/AsciiFile.hpp>
#include <LatAnalyze/CompiledFunction.hpp>
#include <LatAnalyze/Plot.hpp>
#include <LatAnalyze/RandGen.hpp>
using namespace std;
using namespace Latan;
const int seqLength = 25;
const int saveStep = 9;
const string stateFileName = "exRand.seed";
constexpr int seqLength = 25;
constexpr int saveStep = 9;
constexpr Index nDraw = 20000;
const string stateFileName = "exRand.seed";
int main(void)
{
RandGenState state;
RandGen gen[2];
AsciiFile stateFile(stateFileName, File::Mode::write|File::Mode::read);
RandGen gen[2];
AsciiFile stateFile(stateFileName, File::Mode::write|File::Mode::read);
DVec gauss(nDraw);
Plot p;
Histogram h;
cout << "- GENERATOR STATE I/O TESTS" << endl;
cout << "-- generating a " << seqLength << " steps random sequence..."
@ -38,5 +44,16 @@ int main(void)
{
cout << "step " << i << "\t: " << gen[1].uniform() <<endl;
}
cout << "-- generating " << nDraw << " Gaussian random numbers..." << endl;
FOR_VEC(gauss, i)
{
gauss(i) = gen[0].gaussian();
}
h.setFromData(gauss, -5., 5., 40);
h.normalize();
p << PlotHistogram(h);
p << PlotFunction(compile("return exp(-x_0^2/2)/sqrt(2*pi);", 1), -5., 5.);
p.display();
return EXIT_SUCCESS;
}