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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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34
utils/regr/corr.cpp
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@ -39,11 +39,11 @@ static Add_corr_ToUDAFMap addToMap;
struct corr_data
{
uint64_t cnt;
double sumx;
double sumx2; // sum of (x squared)
double sumy;
double sumy2; // sum of (y squared)
double sumxy; // sum of x * y
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumy2; // sum of (y squared)
long double sumxy; // sum of x * y
};
@ -153,29 +153,29 @@ mcsv1_UDAF::ReturnCode corr::evaluate(mcsv1Context* context, static_any::any& va
double N = data->cnt;
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumx2 = data->sumx2;
double sumy2 = data->sumy2;
double sumxy = data->sumxy;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumy2 = data->sumy2;
long double sumxy = data->sumxy;
double var_popx = (sumx2 - (sumx * sumx / N)) / N;
long double var_popx = (sumx2 - (sumx * sumx / N)) / N;
if (var_popx == 0)
{
// When var_popx is 0, NULL is the result.
return mcsv1_UDAF::SUCCESS;
}
double var_popy = (sumy2 - (sumy * sumy / N)) / N;
long double var_popy = (sumy2 - (sumy * sumy / N)) / N;
if (var_popy == 0)
{
// When var_popy is 0, NULL is the result
return mcsv1_UDAF::SUCCESS;
}
double std_popx = sqrt(var_popx);
double std_popy = sqrt(var_popy);
double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
double corr = covar_pop / (std_popy * std_popx);
valOut = corr;
long double std_popx = sqrt(var_popx);
long double std_popy = sqrt(var_popy);
long double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
long double corr = covar_pop / (std_popy * std_popx);
valOut = static_cast<double>(corr);
}
return mcsv1_UDAF::SUCCESS;
}

16
utils/regr/covar_pop.cpp
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@ -39,9 +39,9 @@ static Add_covar_pop_ToUDAFMap addToMap;
struct covar_pop_data
{
uint64_t cnt;
double sumx;
double sumy;
double sumxy; // sum of x * y
long double sumx;
long double sumy;
long double sumxy; // sum of x * y
};
@ -145,12 +145,12 @@ mcsv1_UDAF::ReturnCode covar_pop::evaluate(mcsv1Context* context, static_any::an
double N = data->cnt;
if (N > 0)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumxy = data->sumxy;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumxy = data->sumxy;
double covar_pop = (sumxy - ((sumx * sumy) / N)) / N ;
valOut = covar_pop;
long double covar_pop = (sumxy - ((sumx * sumy) / N)) / N ;
valOut = static_cast<double>(covar_pop);
}
return mcsv1_UDAF::SUCCESS;
}

16
utils/regr/covar_samp.cpp
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@ -39,9 +39,9 @@ static Add_covar_samp_ToUDAFMap addToMap;
struct covar_samp_data
{
uint64_t cnt;
double sumx;
double sumy;
double sumxy; // sum of x * y
long double sumx;
long double sumy;
long double sumxy; // sum of x * y
};
@ -145,12 +145,12 @@ mcsv1_UDAF::ReturnCode covar_samp::evaluate(mcsv1Context* context, static_any::a
double N = data->cnt;
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumxy = data->sumxy;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumxy = data->sumxy;
double covar_samp = (sumxy - ((sumx * sumy) / N)) / (N - 1);
valOut = covar_samp;
long double covar_samp = (sumxy - ((sumx * sumy) / N)) / (N - 1);
valOut = static_cast<double>(covar_samp);
}
else
if (N == 1)

4
utils/regr/regr_avgx.cpp
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@ -40,7 +40,7 @@ static Add_regr_avgx_ToUDAFMap addToMap;
// Use the simple data model
struct regr_avgx_data
{
double sum;
long double sum;
uint64_t cnt;
};
@ -132,7 +132,7 @@ mcsv1_UDAF::ReturnCode regr_avgx::evaluate(mcsv1Context* context, static_any::an
if (data->cnt > 0)
{
valOut = data->sum / (double)data->cnt;
valOut = static_cast<double>(data->sum / (long double)data->cnt);
}
return mcsv1_UDAF::SUCCESS;

4
utils/regr/regr_avgy.cpp
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@ -40,7 +40,7 @@ static Add_regr_avgy_ToUDAFMap addToMap;
// Use the simple data model
struct regr_avgy_data
{
double sum;
long double sum;
uint64_t cnt;
};
@ -130,7 +130,7 @@ mcsv1_UDAF::ReturnCode regr_avgy::evaluate(mcsv1Context* context, static_any::an
if (data->cnt > 0)
{
valOut = data->sum / (double)data->cnt;
valOut = static_cast<double>(data->sum / (long double)data->cnt);
}
return mcsv1_UDAF::SUCCESS;
}

22
utils/regr/regr_intercept.cpp
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@ -39,10 +39,10 @@ static Add_regr_intercept_ToUDAFMap addToMap;
struct regr_intercept_data
{
uint64_t cnt;
double sumx;
double sumx2; // sum of (x squared)
double sumy;
double sumxy; // sum of (x*y)
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumxy; // sum of x * y
};
@ -148,15 +148,15 @@ mcsv1_UDAF::ReturnCode regr_intercept::evaluate(mcsv1Context* context, static_an
double N = data->cnt;
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumx2 = data->sumx2;
double sumxy = data->sumxy;
double numerator = sumy * sumx2 - sumx * sumxy;
double var_pop = (N * sumx2) - (sumx * sumx);
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumxy = data->sumxy;
long double numerator = sumy * sumx2 - sumx * sumxy;
long double var_pop = (N * sumx2) - (sumx * sumx);
if (var_pop != 0)
{
valOut = numerator / var_pop;
valOut = static_cast<double>(numerator / var_pop);
}
}
return mcsv1_UDAF::SUCCESS;

32
utils/regr/regr_r2.cpp
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@ -39,11 +39,11 @@ static Add_regr_r2_ToUDAFMap addToMap;
struct regr_r2_data
{
uint64_t cnt;
double sumx;
double sumx2; // sum of (x squared)
double sumy;
double sumy2; // sum of (y squared)
double sumxy; // sum of x * y
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumy2; // sum of (y squared)
long double sumxy; // sum of x * y
};
@ -153,13 +153,13 @@ mcsv1_UDAF::ReturnCode regr_r2::evaluate(mcsv1Context* context, static_any::any&
double N = data->cnt;
if (N > 1)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumx2 = data->sumx2;
double sumy2 = data->sumy2;
double sumxy = data->sumxy;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumy2 = data->sumy2;
long double sumxy = data->sumxy;
double var_popx = (sumx2 - (sumx * sumx / N)) / N;
long double var_popx = (sumx2 - (sumx * sumx / N)) / N;
if (var_popx == 0)
{
// When var_popx is 0, NULL is the result.
@ -172,11 +172,11 @@ mcsv1_UDAF::ReturnCode regr_r2::evaluate(mcsv1Context* context, static_any::any&
valOut = 1.0;
return mcsv1_UDAF::SUCCESS;
}
double std_popx = sqrt(var_popx);
double std_popy = sqrt(var_popy);
double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
double corr = covar_pop / (std_popy * std_popx);
valOut = corr * corr;
long double std_popx = sqrt(var_popx);
long double std_popy = sqrt(var_popy);
long double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
long double corr = covar_pop / (std_popy * std_popx);
valOut = static_cast<double>(corr * corr);
}
return mcsv1_UDAF::SUCCESS;
}

24
utils/regr/regr_slope.cpp
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@ -39,10 +39,10 @@ static Add_regr_slope_ToUDAFMap addToMap;
struct regr_slope_data
{
uint64_t cnt;
double sumx;
double sumx2; // sum of (x squared)
double sumy;
double sumxy; // sum of (x*y)
long double sumx;
long double sumx2; // sum of (x squared)
long double sumy;
long double sumxy; // sum of x * y
};
@ -148,16 +148,16 @@ mcsv1_UDAF::ReturnCode regr_slope::evaluate(mcsv1Context* context, static_any::a
if (N > 1)
{
// COVAR_POP(y, x) / VAR_POP(x)
double sumx = data->sumx;
double sumy = data->sumy;
double sumx2 = data->sumx2;
double sumxy = data->sumxy;
double covar_pop = N * sumxy - sumx * sumy;
double var_pop = N * sumx2 - sumx * sumx;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumx2 = data->sumx2;
long double sumxy = data->sumxy;
long double covar_pop = N * sumxy - sumx * sumy;
long double var_pop = N * sumx2 - sumx * sumx;
if (var_pop != 0)
{
double slope = covar_pop / var_pop;
valOut = slope;
long double slope = covar_pop / var_pop;
valOut = static_cast<double>(slope);
}
}
return mcsv1_UDAF::SUCCESS;

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;
}

22
utils/regr/regr_sxy.cpp
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@ -39,9 +39,9 @@ static Add_regr_sxy_ToUDAFMap addToMap;
struct regr_sxy_data
{
uint64_t cnt;
double sumx;
double sumy;
double sumxy; // sum of x * y
long double sumx;
long double sumy;
long double sumxy; // sum of x * y
};
@ -88,8 +88,8 @@ mcsv1_UDAF::ReturnCode regr_sxy::nextValue(mcsv1Context* context, ColumnDatum* v
static_any::any& valIn_y = valsIn[0].columnData;
static_any::any& valIn_x = valsIn[1].columnData;
struct regr_sxy_data* data = (struct regr_sxy_data*)context->getUserData()->data;
double valx = 0.0;
double valy = 0.0;
long double valx = 0.0;
long double valy = 0.0;
valx = convertAnyTo<double>(valIn_x);
valy = convertAnyTo<double>(valIn_y);
@ -145,13 +145,13 @@ mcsv1_UDAF::ReturnCode regr_sxy::evaluate(mcsv1Context* context, static_any::any
double N = data->cnt;
if (N > 0)
{
double sumx = data->sumx;
double sumy = data->sumy;
double sumxy = data->sumxy;
long double sumx = data->sumx;
long double sumy = data->sumy;
long double sumxy = data->sumxy;
double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
double regr_sxy = data->cnt * covar_pop;
valOut = regr_sxy;
long double covar_pop = (sumxy - ((sumx * sumy) / N)) / N;
long double regr_sxy = data->cnt * covar_pop;
valOut = static_cast<double>(regr_sxy);
}
return mcsv1_UDAF::SUCCESS;
}

14
utils/regr/regr_syy.cpp
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@ -39,8 +39,8 @@ static Add_regr_syy_ToUDAFMap addToMap;
struct regr_syy_data
{
uint64_t cnt;
double sumy;
double sumy2; // sum of (y squared)
long double sumy;
long double sumy2; // sum of (y squared)
};
@ -125,14 +125,14 @@ mcsv1_UDAF::ReturnCode regr_syy::subEvaluate(mcsv1Context* context, const UserDa
mcsv1_UDAF::ReturnCode regr_syy::evaluate(mcsv1Context* context, static_any::any& valOut)
{
struct regr_syy_data* data = (struct regr_syy_data*)context->getUserData()->data;
double N = data->cnt;
long double N = data->cnt;
if (N > 0)
{
double sumy = data->sumy;
double sumy2 = data->sumy2;
long double sumy = data->sumy;
long double sumy2 = data->sumy2;
double var_popy = (sumy2 - (sumy * sumy / N)) / N;
valOut = data->cnt * var_popy;
long double var_popy = (sumy2 - (sumy * sumy / N)) / N;
valOut = static_cast<double>(data->cnt * var_popy);
}
return mcsv1_UDAF::SUCCESS;
}