[SciPy-dev] unique hanging?
Jonathan Taylor
jonathan.taylor at stanford.edu
Tue Mar 14 14:59:36 EST 2006
hi all,
apologize if this is not the right list -- in the latest svn of numpy
unique seems to be taking a long time with "nan"
reproducible error:
-------------------------------------------------------------------------------------------
import numpy as N
import numpy.random as R
x = R.standard_normal((100000,))
x = N.around(x * 100.) / 100.
print len(N.unique(x))
x[0] = N.nan
print len(N.unique(x))
x[0:50000] = N.nan
print 'OK'
print len(N.unique(x))
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