Re: [Numpy-discussion] Default builds of OpenBLAS development branch are now fork safe

2014-04-03 Thread Julian Taylor
FYI, binaries linking openblas should add this patch in some way: https://github.com/numpy/numpy/pull/4580 Cliffs: linking OpenBLAS prevents parallelization via threading or multiprocessing. just wasted a bunch of time figuring that out ... (though its well documented in numerous stackoverflow

Re: [Numpy-discussion] ANN: NumPy 1.8.1 release

2014-04-03 Thread David Cournapeau
On Wed, Apr 2, 2014 at 7:52 AM, Matthew Brett matthew.br...@gmail.comwrote: Hi, On Tue, Apr 1, 2014 at 4:46 PM, David Cournapeau courn...@gmail.com wrote: On Wed, Apr 2, 2014 at 12:36 AM, Nathaniel Smith n...@pobox.com wrote: On Tue, Apr 1, 2014 at 11:58 PM, David Cournapeau

Re: [Numpy-discussion] Standard Deviation (std): Suggested change for ddof default value

2014-04-03 Thread Sturla Molden
alex argri...@ncsu.edu wrote: I don't have any opinion about this debate, but I love the justification in that thread Any surprise that is created by the different default should be mitigated by the fact that it's an opportunity to learn something about what you are doing. That is so true.

Re: [Numpy-discussion] Standard Deviation (std): Suggested change for ddof default value

2014-04-03 Thread Sturla Molden
josef.p...@gmail.com wrote: pandas came later and thought ddof=1 is worth more than consistency. Pandas is a data analysis package. NumPy is a numerical array package. I think ddof=1 is justified for Pandas, for consistency with statistical software (SPSS et al.) For NumPy, there are many

Re: [Numpy-discussion] Default builds of OpenBLAS development branch are now fork safe

2014-04-03 Thread Olivier Grisel
2014-04-03 14:56 GMT+02:00 Julian Taylor jtaylor.deb...@googlemail.com: FYI, binaries linking openblas should add this patch in some way: https://github.com/numpy/numpy/pull/4580 Cliffs: linking OpenBLAS prevents parallelization via threading or multiprocessing. just wasted a bunch of time

[Numpy-discussion] mtrand normal sigma = 0 too restrictive

2014-04-03 Thread Neal Becker
Traceback (most recent call last): File ./test_inroute_frame.py, line 1694, in module run_line (sys.argv) File ./test_inroute_frame.py, line 1690, in run_line return run (opt, cmdline) File ./test_inroute_frame.py, line 1115, in run burst.tr (xbits,

Re: [Numpy-discussion] Standard Deviation (std): Suggested change for ddof default value

2014-04-03 Thread josef . pktd
On Wed, Apr 2, 2014 at 10:06 AM, Sturla Molden sturla.mol...@gmail.com wrote: josef.p...@gmail.com wrote: pandas came later and thought ddof=1 is worth more than consistency. Pandas is a data analysis package. NumPy is a numerical array package. I think ddof=1 is justified for Pandas, for

Re: [Numpy-discussion] Standard Deviation (std): Suggested change for ddof default value

2014-04-03 Thread Bago
Sturla P.S. Personally I am not convinced unbiased is ever a valid argument, as the biased estimator has smaller error. This is from experience in marksmanship: I'd rather shoot a tight series with small systematic error than scatter my bullets wildly but unbiased on the target. It is the

Re: [Numpy-discussion] Standard Deviation (std): Suggested change for ddof default value

2014-04-03 Thread josef . pktd
On Thu, Apr 3, 2014 at 2:21 PM, Bago mrb...@gmail.com wrote: Sturla P.S. Personally I am not convinced unbiased is ever a valid argument, as the biased estimator has smaller error. This is from experience in marksmanship: I'd rather shoot a tight series with small systematic error than

[Numpy-discussion] ANN: Scipy 0.14.0 release candidate 1

2014-04-03 Thread Ralf Gommers
Hi, I'm pleased to announce the availability of the first release candidate of Scipy 0.14.0. Please try this RC and report any issues on the scipy-dev mailing list. A significant number of fixes for scipy.sparse went in after the beta release, so users of that module may want to test this release