[Numpy-discussion] Trying to read 500M txt file using numpy.genfromtxt within ipython shell

Chao YUE chaoyuejoy@gmail....
Tue Mar 20 07:33:56 CDT 2012


Dear all,

I received a file from others which contains ~30 million lines and in size
of ~500M.
I try read it with numpy.genfromtxt in ipython interactive mode. Then
ipython crashed.
The data contains lat,lon,var1,year, the year ranges from 1001 to 2006.
Finally I want to write the
data to netcdf for separate years and feed them into the model. I guess I
need a better way to do this?
anyone would be any idea is highly appreciated.


lon,lat,year,area_burned
-180.0,65.0,1001,0
-180.0,65.0,1002,0
-180.0,65.0,1003,0
-180.0,65.0,1004,0
-180.0,65.0,1005,0
-180.0,65.0,1006,0
-180.0,65.0,1007,0

thanks and cheers,

Chao

-- 
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Chao YUE
Laboratoire des Sciences du Climat et de l'Environnement (LSCE-IPSL)
UMR 1572 CEA-CNRS-UVSQ
Batiment 712 - Pe 119
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Tel: (33) 01 69 08 29 02; Fax:01.69.08.77.16
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