[Numpy-discussion] Time for beta1 of NumPy 1.0
sransom at nrao.edu
Fri Jun 30 14:44:38 CDT 2006
On Fri, Jun 30, 2006 at 01:25:23PM -0600, Travis Oliphant wrote:
> Robert Kern wrote:
> >Whatever else you do, leave arange() alone. It should never have accepted floats
> >in the first place.
> Actually, Robert makes a good point. arange with floats is
> problematic. We should direct people to linspace instead of changing
> the default of arange. Most new users will probably expect arange to
> return a type similar to Python's range which is int.
> So, I think from both a pragmatic and idealized situtation, arange
> should stay with the default of ints. People who want arange to return
> floats should be directed to linspace.
I agree that arange with floats is problematic. However,
if you want, for example, arange(10.0) (as I often do), you have
to do: linspace(0.0, 9.0, 10), which is very un-pythonic and not
at all what a new user would expect...
I think of linspace as a convenience function, not as a
replacement for arange with floats.
Scott M. Ransom Address: NRAO
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