[Numpy-discussion] Floating point "close" function?
Sat Mar 3 08:31:01 CST 2012
On Sat, Mar 3, 2012 at 3:05 PM, Robert Kern <firstname.lastname@example.org> wrote:
> On Sat, Mar 3, 2012 at 13:59, Ralf Gommers <email@example.com>
> > On Thu, Mar 1, 2012 at 11:44 PM, Joe Kington <firstname.lastname@example.org> wrote:
> >> Is there a numpy function for testing floating point equality that
> >> a boolean array?
> >> I'm aware of np.allclose, but I need a boolean array. Properly handling
> >> NaN's and Inf's (as allclose does) would be a nice bonus.
> >> I wrote the function below to do this, but I suspect there's a method in
> >> numpy that I missed.
> > I don't think such a function exists, would be nice to have. How about
> > adding a keyword "return_array" to allclose to do so?
> As a general design principle, adding a boolean flag that changes the
> return type is worse than making a new function.
That's certainly true as a general principle. Do you have a concrete
suggestion in this case though? Because this is also bad:
Display all 561 possibilities? (y or n)
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