[Numpy-discussion] bug in stats.randint
Flavio Coelho
fccoelho at gmail.com
Thu Apr 23 09:27:49 EDT 2009
Hi,
I stumbled upon something I think is a bug in scipy:
In [4]: stats.randint(1.,15.).ppf([.1,.2,.3,.4,.5])
Out[4]: array([ 2., 3., 5., 6., 7.])
When you pass float arguments to stats.randint and then call the ppf method,
you get an array of floats, which clearly wrong. The rvs method doesn't
display this bug so I think is a matter of poor type checking in the ppf
implementation...
--
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Flávio Codeço Coelho
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