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Use std::floor instead of casting double -> int -> double #1026

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Nov 21, 2024
Merged

Use std::floor instead of casting double -> int -> double #1026

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4 changes: 2 additions & 2 deletions src/CMSHistErrorPropagator.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -341,7 +341,7 @@ RooArgList * CMSHistErrorPropagator::setupBinPars(double poissonThreshold) {
}

// Now check if we are below the poisson threshold
double n = int(0.5 + ((sub_sum * sub_sum) / (sub_err * sub_err)));
double n = std::floor(0.5 + ((sub_sum * sub_sum) / (sub_err * sub_err)));
double alpha = valsum_[j] / n;
std::cout << TString::Format(
"%-10i %-15f %-15f %-30s\n", j, n, std::sqrt(n),
Expand Down Expand Up @@ -373,7 +373,7 @@ RooArgList * CMSHistErrorPropagator::setupBinPars(double poissonThreshold) {
std::cout << TString::Format(" %-30s\n", "=> Cannot handle negative content, ignore");
bintypes_[j][i] = 4;
} else if (v_p > 0. && e_p > 0. && v_p >= (e_p*0.999)) {
double n_p_r = int(0.5 + ((v_p * v_p) / (e_p * e_p)));
double n_p_r = std::floor(0.5 + ((v_p * v_p) / (e_p * e_p)));
double alpha_p_r = v_p / n_p_r;
std::cout << TString::Format(
" %-20s %-15f %-15f %-30s\n", "", n_p_r, std::sqrt(n_p_r),
Expand Down
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