{check for zero variance}
if (sxx <= 0.0) or (syy <= 0.0) then
RaiseStatError(stscStatBadData);
It seems the second check with regard to syy is too strict, equality should not be a problem as the samples can be simply estimated in that case as a constant function (horizontal line).
Thanks,
Janos
Last edit: jbrezniczky 2015-02-17
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Hello,
I hope I'm posting at the right location.
This is from the LinReg16 routine (StStat.pas):
{check for zero variance}
if (sxx <= 0.0) or (syy <= 0.0) then
RaiseStatError(stscStatBadData);
It seems the second check with regard to syy is too strict, equality should not be a problem as the samples can be simply estimated in that case as a constant function (horizontal line).
Thanks,
Janos
Last edit: jbrezniczky 2015-02-17