[Numpy-tickets] [NumPy] #502: Unbiased estimates of variance/ std deviation

NumPy numpy-tickets@scipy....
Wed Jul 11 21:12:53 CDT 2007

#502: Unbiased estimates of variance/ std deviation
 Reporter:  pierregm     |        Owner:  somebody
     Type:  enhancement  |       Status:  new     
 Priority:  low          |    Milestone:  1.1     
Component:  Other        |      Version:  none    
 Severity:  trivial      |   Resolution:          
 Keywords:               |  
Comment (by zouave):

 I've just posted a patch that adds a "ddof" parameter as described above
 (by rkern), as well as a "pop_mean" parameter that allows users to supply
 an out-of-sample population mean to be used instead of calculating the in-
 sample mean.  It affects ndarrays, masked arrays and matrices; doesn't
 affect fromnumeric.py stuff.  The appropriate on-line doc is also updated
 (to the best of my knowledge).

 Any comments, questions, suggestions [or insults] are more than welcome.
 Honestly, my hope is to have this fixed by 1.0.4 (and that this release
 will come soon).

Ticket URL: <http://projects.scipy.org/scipy/numpy/ticket/502#comment:4>
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