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internal random generator entirely removed, use C++11 generators

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This commit is contained in:
Antonin Portelli
2016-04-06 20:04:23 +01:00
parent 984947c677
commit 3611d12fa9
20 changed files with 71 additions and 1044 deletions
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40
examples/exRand.cpp
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@ -2,52 +2,26 @@
#include <LatAnalyze/Io.hpp>
#include <LatAnalyze/CompiledFunction.hpp>
#include <LatAnalyze/Plot.hpp>
#include <LatAnalyze/RandGen.hpp>
using namespace std;
using namespace Latan;
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);
DVec gauss(nDraw);
Plot p;
Histogram h;
random_device rd;
mt19937 gen(rd());
normal_distribution<> dis;
DVec gauss(nDraw);
Plot p;
Histogram h;
cout << "- GENERATOR STATE I/O TESTS" << endl;
cout << "-- generating a " << seqLength << " steps random sequence..."
<< endl;
for (int i = 0; i < seqLength; ++i)
{
if (i == saveStep)
{
state = gen[0].getState();
stateFile.save(state, "exRand");
cout << "generator state after step " << saveStep - 1
<< " saved in '" << stateFileName << "'" << endl;
}
cout << "step " << i << "\t: " << gen[0].uniform() <<endl;
}
cout << "-- setting up another generator from '" << stateFileName << "'..."
<< endl;
gen[1].setState(stateFile.read<RandGenState>("exRand"));
cout << "-- generating a " << seqLength << " steps random sequence..."
<< endl;
for (int i = 0; i < seqLength; ++i)
{
cout << "step " << i << "\t: " << gen[1].uniform() <<endl;
}
cout << "-- generating " << nDraw << " Gaussian random numbers..." << endl;
FOR_VEC(gauss, i)
{
gauss(i) = gen[0].gaussian();
gauss(i) = dis(gen);
}
h.setFromData(gauss, -5., 5., 40);
h.normalize();