[Numpy-discussion] skip lines at the end of file with loadtxt
Massimo Di Stefano
massimodisasha at gmail.com
Tue Oct 25 20:56:35 EDT 2011
Many thanks Oliver!
i missed it in the description,
works great :-)
--Massimo.
Il giorno 25/ott/2011, alle ore 15.33, Olivier Delalleau ha scritto:
> Maybe try genfromtxt instead of loadtxt, it has a skip_footer option.
>
> -=- Olivier
>
> 2011/10/25 Massimo Di Stefano <massimodisasha at gmail.com>
> i'm tring to generate an array reading a txt file from internet.
> my target is to use python instead of matlab, to replace this steps in matlab :
>
> url=['http://www.cdc.noaa.gov/Correlation/amon.us.long.data']; urlwrite(url,'file.txt');
>
> i'm using this code :
>
> urllib.urlretrieve('http://www.cdc.noaa.gov/Correlation/amon.us.long.data', 'file.txt') a = np.loadtxt('file.txt', skiprows=1)
>
> but it fails becouse of the txt description at the end of the file,
>
> do you know if exist a way to skip the X lines at the end,
>
> something like "skipmultiplerows='1,-4'" (to skip the first and the last 4 rows in the file)
>
> or i have to use some sort of string manipulation (readlines?) instead ?
>
>
> Thanks!
>
> --Massimo
>
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