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XY datatypes: tools to get residuals or partial residuals from a fit

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Antonin Portelli
2015-07-07 18:50:03 +01:00
parent 59bb3fb78c
commit cebf2334fa
6 changed files with 167 additions and 44 deletions
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71
lib/XYSampleData.cpp
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@@ -64,6 +64,22 @@ const DoubleFunctionSample & SampleFitResult::getModel(
return model_[static_cast<unsigned int>(j)];
}
FitResult SampleFitResult::getFitResult(const Index s) const
{
FitResult fit;
fit = (*this)[s];
fit.chi2_ = getChi2();
fit.nDof_ = static_cast<Index>(getNDof());
fit.model_.resize(model_.size());
for (unsigned int k = 0; k < model_.size(); ++k)
{
fit.model_[k] = model_[k][s];
}
return fit;
}
/******************************************************************************
* XYSampleData implementation *
******************************************************************************/
@@ -294,3 +310,58 @@ void XYSampleData::setDataToSample(const Index s)
data_.x() = x_[s];
data_.y() = y_[s];
}
// residuals ///////////////////////////////////////////////////////////////////
XYSampleData XYSampleData::getResiduals(const SampleFitResult &fit) const
{
const Index nSample = x_.size();
XYSampleData res(*this);
DMatSample xBuf(nSample, getXDim(), 1), tmp(nSample, 1, 1);
for (Index j = 0; j < res.getYDim(); ++j)
{
const DoubleFunctionSample &f = fit.getModel(_, j);
for (Index k = 0; k < res.getNData(); ++k)
{
xBuf = this->x(_, k);
tmp = this->y(j, k);
FOR_STAT_ARRAY(xBuf, s)
{
tmp[s](0) -= f[s](xBuf[s].transpose());
}
res.y(j, k) = tmp;
}
}
return res;
}
XYSampleData XYSampleData::getPartialResiduals(const SampleFitResult &fit,
const DVec &x,
const Index i) const
{
const Index nSample = x_.size();
XYSampleData res(*this);
DMatSample xBuf(nSample, getXDim(), 1), tmp(nSample, 1, 1);
DVec buf(x);
for (Index j = 0; j < res.getYDim(); ++j)
{
const DoubleFunctionSample &f = fit.getModel(_, j);
for (Index k = 0; k < res.getNData(); ++k)
{
xBuf = this->x(_, k);
tmp = this->y(j, k);
FOR_STAT_ARRAY(xBuf, s)
{
buf(i) = xBuf[s](i);
tmp[s](0) -= f[s](xBuf[s].transpose()) - f[s](buf);
}
res.y(j, k) = tmp;
}
}
return res;
}