Thank you for the precision, I didn't thought of using 'Sxx' directly :( Matthieu
2007/10/5, lorenzo bolla <[EMAIL PROTECTED]>: > > gotcha. specify the number of bytes, then. > > In [20]: x > Out[20]: > array([[-2., 3.], > [ 4., 5.]]) > > In [21]: x.astype(numpy.dtype('S10')) > Out[21]: > array([['-2.0', '3.0'], > ['4.0', '5.0']], > dtype='|S10') > > L. > > On 10/5/07, Matthieu Brucher <[EMAIL PROTECTED]> wrote: > > > > I'd like to have the '2.', because if the number is negative, only '-' > > is returned, not the real value. > > > > Matthieu > > > > 2007/10/5, lorenzo bolla < [EMAIL PROTECTED]>: > > > > > > what's wrong with astype? > > > > > > In [3]: x = numpy.array([[2.,3.],[4.,5.]]) > > > > > > In [4]: x.astype(str) > > > Out[4]: > > > array([['2', '3'], > > > ['4', '5']], > > > dtype='|S1') > > > > > > and if you want a list: > > > > > > In [5]: x.astype(str).tolist() > > > Out[5]: [['2', '3'], ['4', '5']] > > > > > > > > > L. > > > > > > > > > On 10/5/07, Matthieu Brucher < [EMAIL PROTECTED] > wrote: > > > > > > > Hi, > > > > > > > > I'm trying to cast a float array into a string array (for instance > > > > transforming [[2., 3.], [4., 5.]] into [['2.', '3.'], ['4.', '5.']]), I > > > > tried with astype(str) and every variation (str_, string, string_, > > > > string0), > > > > but not luck. > > > > Is there a function or a method of the array class that can fulfill > > > > my needs ? And if there is a way to add a formatting option ('1.1f' > > > > for instance), it would be even better. > > > > > > > > Matthieu > > > > > > > > _______________________________________________ > > > > Numpy-discussion mailing list > > > > Numpy-discussion@scipy.org > > > > http://projects.scipy.org/mailman/listinfo/numpy-discussion > > > > > > > > > > > > > > _______________________________________________ > > > Numpy-discussion mailing list > > > Numpy-discussion@scipy.org > > > http://projects.scipy.org/mailman/listinfo/numpy-discussion > > > > > > > > > > _______________________________________________ > > Numpy-discussion mailing list > > Numpy-discussion@scipy.org > > http://projects.scipy.org/mailman/listinfo/numpy-discussion > > > > > > _______________________________________________ > Numpy-discussion mailing list > Numpy-discussion@scipy.org > http://projects.scipy.org/mailman/listinfo/numpy-discussion > >
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