STY: Do not warn for 0*log(0) in entropy #226
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| if qk is None: | ||
| vec = where(pk == 0, 0.0, pk*log(pk)) | ||
| vec = pk[idx]*log(pk[idx]) |
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Doesn't this change the shape of the result?
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Yeah, it does. I wasn't thinking about 2d, since the below wasn't written for 2d either. See the discussion on the mailing list. I'm going to close this and see about adding xlogy to special, as you suggested.
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Minor style fix. Since 0*log(0) is handled explicitly do not warn if encountered and seterr is set to warn.