[Numpy-discussion] what is nan_to_num() for float32 ?
haase at msg.ucsf.edu
Tue Sep 12 15:39:54 CDT 2006
On Tuesday 12 September 2006 13:33, Sebastian Haase wrote:
> Hi !
> I have a nice ndarray image viewer built on OpenGL - one annoyance though
> is that is crashes if the array contains any NaN, or inf, ...
> So, I found N.nan_to_num - but OpenGL (read: video cards) supports only
> single precision float (N.float32)
> So I get this:
> >>> N.nan_to_num([N.inf])
> [ 1.79769313e+308]
> >>> N.nan_to_num([N.inf]).astype(N.float32)
> [ inf]
> Could nan_to_num() get an optional dtype argument ?
> Sebastian Haase
OK - sorry for the noise... this is how to do it:
>>> N.nan_to_num( N.array([N.nan,N.inf,-N.inf],N.float32) )
[ 0.00000000e+00 3.40282347e+38 -3.40282347e+38]
In the meantime I noticed that there is a
but no equivalent for
Should N.asanyarray_chkfinite() be added !?
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