Difference between np.loadtxt depending on whether you supply a file object or a filename
Dear list, I observe a difference when I try to load a 2D numpy array from a file object compared to if I supply a filename viz:
np.version.version
'1.5.1'
f=open('fit_theoretical.txt') a=np.loadtxt(f) a.shape
(1000,)
a=np.loadtxt('fit_theoretical.txt') a.shape
(500, 2)
This strikes me as unexpected, it's not a documented behaviour. Any ideas?
cheers, Andrew.
Hello,
On Mo, 2012-08-20 at 20:55 +1000, Andrew Nelson wrote:
Dear list, I observe a difference when I try to load a 2D numpy array from a file object compared to if I supply a filename viz:
np.version.version
'1.5.1'
f=open('fit_theoretical.txt') a=np.loadtxt(f) a.shape
(1000,)
a=np.loadtxt('fit_theoretical.txt') a.shape
(500, 2)
There is actually a difference between the two, because np.loadtxt opens the file with open(..., 'U'), which means that newlines might be interpreted differently (because of difference between linux/windows/mac newlines using \n, \r, etc. So the problem is that newlines are interpreted wrong for you if you open with just the default mode.
Regards,
Sebastian
This strikes me as unexpected, it's not a documented behaviour. Any ideas?
cheers, Andrew.
-- _____________________________________ Dr. Andrew Nelson
NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
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Sebastian Berg