adding ddof parameter back into std and var #965
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Contributor
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I just got bit by this, and I think it's a pretty serious bug. If someone will merge this, I will write some tests. |
Contributor
Author
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Just curious what your application is that needs population std measures? |
Contributor
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I need sample std measures for calculating standardized (internally studentized) residuals in a linear model. |
Contributor
Author
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If that's the case shouldn't the default pandas behavior be correct? |
Contributor
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No. I need sample statistics. In any event, this is a bug. |
Contributor
Author
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Oh, you need ddof > 1 in your use. Got it. |
Contributor
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Yeah ddof = model degress of freedom in this case. |
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+1 Need this as well |
wesm
added a commit
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Apr 2, 2012
Member
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merged in and tested. need to update the docstrings. someday |
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Issue #934