2011/6/3 Bruce Southey <[email protected]> > On 06/03/2011 10:33 AM, jonasr wrote: > > > > > > Bruce Southey wrote: > >> On 06/03/2011 09:33 AM, jonasr wrote: > >>> thank you very much, works much nicer and faster in comparison to the > >>> script > >>> i wrote and used before , > >>> im not that much used to lambda forms but it seems quit usefull in > >>> situations like this > >>> > >>> > >>> Olivier Delalleau-2 wrote: > >>>> Here's an ugly one-liner: > >>>> > >>>> numpy.genfromtxt('data.txt', converters=dict([k, lambda x: > >>>> float(x.replace(',', '.'))] for k in > >>>> range(len(open('data.txt').readline().strip().split())))) > >>>> > >>>> -=- Olivier > >>>> > >>>> 2011/6/3 jgrub<[email protected]> > >>>> > >>>>> Hello, im actually try to read in data with genfromtxt(), > >>>>> i want to read in numbers which are stored in a textfile like this: > >>>>> > >>>>> 0,000000 0,001221 0,001221 0,000000 > >>>>> 1,278076 > >>>>> 160,102539 > >>>>> > >>>>> 4,000000E-7 0,000000 0,000000 0,002441 > >>>>> 1,279297 > >>>>> 160,000000 > >>>>> > >>>>> 8,000000E-7 -0,001221 0,000000 0,001221 > >>>>> 1,279297 > >>>>> 159,897461 > >>>>> > >>>>> 1,200000E-6 0,000000 0,000000 0,001221 > >>>>> 1,279297 > >>>>> 160,000000 > >>>>> > >>>>> 1,600000E-6 -0,001221 0,000000 0,003662 > >>>>> 1,278076 > >>>>> 159,897461 > >>>>> > >>>>> 2,000000E-6 0,000000 -0,001221 0,003662 > >>>>> 1,279297 > >>>>> 160,000000 > >>>>> > >>>>> my problem is that they are seperated with a comma so when i try to > >>>>> read > >>>>> them > >>>>> i just get a numpy array with NaN's. is there a short way to replace > >>>>> the > >>>>> "," with "." ? > >>>>> > >>>>> -- > >>>>> View this message in context: > >>>>> > http://old.nabble.com/numpy-input-with-genfromttxt%28%29-tp31757790p31757790.html > >>>>> Sent from the Numpy-discussion mailing list archive at Nabble.com. > >>>>> > >>>>> _______________________________________________ > >>>>> NumPy-Discussion mailing list > >>>>> [email protected] > >>>>> http://mail.scipy.org/mailman/listinfo/numpy-discussion > >>>>> > >>>> _______________________________________________ > >>>> NumPy-Discussion mailing list > >>>> [email protected] > >>>> http://mail.scipy.org/mailman/listinfo/numpy-discussion > >>>> > >>>> > >> Isn't this just because of the 'locale' settings? > >> A quick search showed ticket 884 that has code changing the locale that > >> may be useful for you: > >> http://projects.scipy.org/numpy/ticket/884 > >> > >> Perhaps a similar bug exists with genfromtxt? > >> > >> If it is nicely behaved, just use Python's csv module. > >> From the csv documentation: > >> "Since open() > >> <http://docs.python.org/release/3.1.3/library/functions.html#open> is > >> used to open a CSV file for reading, the file will by default be decoded > >> into unicode using the system default encoding (see > >> locale.getpreferredencoding() > >> < > http://docs.python.org/release/3.1.3/library/locale.html#locale.getpreferredencoding > >). > >> To decode a file using a different encoding, use the encoding argument > >> of open:" > >> > >> > >> Bruce > >> > >> > >> > >> _______________________________________________ > >> NumPy-Discussion mailing list > >> [email protected] > >> http://mail.scipy.org/mailman/listinfo/numpy-discussion > >> > >> > > i checked my local settings and got > > > > In [37]: locale.getlocale() > > Out[37]: ('de_DE', 'UTF8') > > > > when i try > > > > locale.setlocale(locale.LC_NUMERIC, 'de_DE') > > > > i get: Error: unsupported locale setting > > same with 'fi_FI' > > any idea ? > > > > > > > > > You don't seem to be using Python. > The 'In [37]' suggest ipython so you have to find how ipython does this. > > However, I am not sure that changing locale will help here but I am > rather naive on this. If it doesn't then file a ticket with a clear > example and ideally with a patch (one can hope). > > Bruce >
Should work just the same in iPython. Works fine with me in iPython with Python 2.5.1. -=- Olivier
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