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MCOL-1983 Use long double for internal calculations of regr_*** functions.

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This commit is contained in:
David Hall
2019-01-21 14:39:51 -06:00
parent eb75d3cd7e
commit 16a6a0a27c
11 changed files with 100 additions and 100 deletions
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12
utils/regr/regr_sxx.cpp
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@ -39,8 +39,8 @@ static Add_regr_sxx_ToUDAFMap addToMap;
struct regr_sxx_data
{
uint64_t cnt;
double sumx;
double sumx2; // sum of (x squared)
long double sumx;
long double sumx2; // sum of (x squared)
};
@ -128,11 +128,11 @@ mcsv1_UDAF::ReturnCode regr_sxx::evaluate(mcsv1Context* context, static_any::any
double N = data->cnt;
if (N > 0)
{
double sumx = data->sumx;
double sumx2 = data->sumx2;
long double sumx = data->sumx;
long double sumx2 = data->sumx2;
double var_popx = (sumx2 - (sumx * sumx / N)) / N;
valOut = data->cnt * var_popx;
long double var_popx = (sumx2 - (sumx * sumx / N)) / N;
valOut = static_cast<double>(data->cnt * var_popx);
}
return mcsv1_UDAF::SUCCESS;
}