On 24/05/2013 14:02, Emanuele Olivetti wrote: > Hi, > > I'm using NumPy v1.6.1 shipped with Ubuntu 12.04 (Python 2.7.3). I observed an > odd behavior of the multivariate_normal function, which does not like int64 > for > the 'size' argument. > Short example: > """ > import numpy as np > print np.random.multivariate_normal(mean=np.zeros(2), cov=np.eye(2), size=1) > print np.random.multivariate_normal(mean=np.zeros(2), cov=np.eye(2), > size=np.int64(1)) > """ > > Which outputs: > > """ > $ python2.7 mvn_bug.py > [[ 0.28880655 0.43289446]] > Traceback (most recent call last): > File "mvn_bug.py", line 3, in <module> > print np.random.multivariate_normal(mean=np.zeros(2), cov=np.eye(2), > size=np.int64(1)) > File "mtrand.pyx", line 3990, in mtrand.RandomState.multivariate_normal > (numpy/random/mtrand/mtrand.c:16663) > IndexError: invalid index to scalar variable. > """
Hello Emanuele, it works for me with numpy 1.6.2 (python 2.7.3 on mac os x 10.6 via macports but is should not matter). Cheers, Daniele _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
