[Rd] Accuracy Bug 1228 (PR#6743)

daheiser at gvn.net daheiser at gvn.net
Tue Apr 6 04:24:35 CEST 2004

It is an error in the algorithm. It is an excellent example of how errors
and faults occur when the programmer follows the mathematical formula
exactly. Welford's algorithm does not produce this error. It gives correct
standard deviation and variance values.

David Heiser

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