Do not trust in computers [Bioanalytics]

posted by Helmut Homepage – Vienna, Austria, 2009-01-22 02:49  – Posting: # 3101
Views: 17,817

Dear Ohlbe,

» Does Microsoft also call this a "feature", rather than a bug ?

[image]If you boil this page down, bug. Although they don’t confess that pre-2003 was buggy – they use some kind of Newspeak.

They give also this formula
SQRT((SUMSQ(values)-(SUM(values)^2)/COUNT(values))/(COUNT(values)-1))
as ‘at least a good approximation to the value of STDEV as found by earlier versions of Excel.’

There was a major change between v2003 and its predecessors. See this overview in Microsoft’s Knowledge Base.

Cheers,
Helmut Schütz
[image]

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