[Numpy-discussion] numpy input with genfromttxt()

Olivier Delalleau shish@keba...
Fri Jun 3 09:10:05 CDT 2011


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 <jonas.ruebsam@web.de>

>
> 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 "."  ?
>
> --
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