On Tuesday 19 September 2006 15:48, Travis Oliphant wrote: > Sebastian Haase wrote: <snip> > >can we please change dtype to default to float64 !? > > The default is float64 now (as long as you are not using > numpy.oldnumeric). > > I suppose more appropriately, we could reduce over float for integer > data-types when calculating the mean as well (since a floating point is > returned anyway). >
Is now mean() always "reducing over" float64 ? The svn note """Log: Fix mean, std, and var methods so that they reduce over double data-type with integer inputs. """ makes it sound that a float32 input is stays float32 ? For mean calculation this might introduce large errors - I usually would require double-precision for *any* input type ... (don't know how to say this for complex types !? Are here real and imag treated separately / independently ?) Thanks, Sebastian Haase ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Numpy-discussion mailing list Numpy-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/numpy-discussion
