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test_InterpolatedCompositeBuilder.cc
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test_InterpolatedCompositeBuilder.cc
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#include "UnitTest++.h"
#include "test_utils.hh"
#include "geners/CPP11_array.hh"
#include "npstat/stat/buildInterpolatedCompositeDistroND.hh"
#include "npstat/stat/DummyCompositeDistroBuilder.hh"
#include "npstat/stat/buildInterpolatedDistro1DNP.hh"
#include "npstat/stat/DummyDistro1DBuilder.hh"
using namespace npstat;
using namespace std;
#define PREDICTOR_DIM 2
namespace {
TEST(symbetaInTheUnitBoxCenter)
{
double coords[PREDICTOR_DIM];
for (unsigned i=0; i<PREDICTOR_DIM; ++i)
coords[i] = 0.5;
const double smallBw = 0.05;
for (int ipow=-1; ipow<10; ++ipow)
{
const double effR = Private::symbetaEffRatioInsideUnitBox(
ipow, smallBw, coords, PREDICTOR_DIM);
const double bw = Private::symbetaBandwidthInsideUnitBox(
ipow, effR, coords, PREDICTOR_DIM);
CHECK_CLOSE(smallBw, bw, 1.0e-8);
if (ipow == 0)
CHECK_CLOSE(pow(2*smallBw, PREDICTOR_DIM), effR, 1.0e-9);
}
}
TEST(symbetaInsideUnitBox)
{
double coords[PREDICTOR_DIM];
const BoxND<double>& ubox = BoxND<double>::unitBox(PREDICTOR_DIM);
for (unsigned icycle=0; icycle<100; ++icycle)
{
for (unsigned i=0; i<PREDICTOR_DIM; ++i)
coords[i] = test_rng();
const double initBw = 0.1 + 0.9*test_rng();
for (int ipow=-1; ipow<10; ++ipow)
{
const double effR = Private::symbetaEffRatioInsideUnitBox(
ipow, initBw, coords, PREDICTOR_DIM);
if (ipow == 0)
{
BoxND<double> box;
for (unsigned i=0; i<PREDICTOR_DIM; ++i)
box.push_back(Interval<double>(coords[i]-initBw,
coords[i]+initBw));
CHECK_CLOSE(box.overlapVolume(ubox), effR, 1.0e-9);
}
// We can have effR == 1.0 for ipow == 0
assert(effR < 1.0 + 1.0e-12);
if (effR < 1.0 - 1.0e-7)
{
const double bw = Private::symbetaBandwidthInsideUnitBox(
ipow, effR, coords, PREDICTOR_DIM);
CHECK_CLOSE(initBw, bw, 1.0e-7);
}
}
}
}
TEST(buildInterpolatedCompositeDistroNDGrid)
{
const unsigned nAllDims = PREDICTOR_DIM+2;
typedef CPP11_array<float,nAllDims> Point;
const unsigned npoints = 100000;
const double nEffWanted = 10000;
const int symbetaPower = 4;
const bool stretchKernels = true;
const bool printMessages = false;
std::vector<Point> data;
data.reserve(npoints);
Point p0;
for (unsigned i=0; i<npoints; ++i)
{
for (unsigned idim=0; idim<nAllDims; ++idim)
p0[idim] = idim + (2 + idim)*test_rng();
data.push_back(p0);
}
unsigned dimPredictors[PREDICTOR_DIM], predBins[PREDICTOR_DIM];
for (unsigned i=0; i<PREDICTOR_DIM; ++i)
{
dimPredictors[i] = nAllDims - 1 - i;
predBins[i] = 10;
}
unsigned dimResponse[2] = {0U, 1U};
DummyCompositeDistroBuilder<Point> dummyBuilder;
buildInterpolatedCompositeDistroND(
data, dimPredictors, PREDICTOR_DIM, 0, predBins, symbetaPower,
nEffWanted, stretchKernels, dimResponse, 2, dummyBuilder,
true, printMessages);
DummyDistro1DBuilder<Point> dummyBuilder1D;
buildInterpolatedDistro1DNP(
data, dimPredictors, PREDICTOR_DIM, 0, predBins, symbetaPower,
nEffWanted, stretchKernels, dimResponse[1], dummyBuilder1D,
false, printMessages);
}
}

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