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Writing a lot of data to ASCII file without a loop? [message #76866]

Tue, 12 July 2011 03:11

rjp23
Messages: 97
Registered: June 2010

Member

I need to write a large array of values to an ASCII file in two long
columns and wondered if there was a quick way of doing it.

Currently we do:

FOR i = 0, n_elements(s1)-1 DO BEGIN
printf, unit, s1[i], n1[i], format = '(1x,G15.9,1x,G15.9)'
ENDFOR

It works and is quick (0.06 seconds per file) but during our
processing we're creating tens of thousands of these files and the
time adds up.

Unfortunately we can't change the code that these are required as
input into (otherwise we'd write them all to a single HDF file for
example).

Is there a way to get rid of that loop?

Cheers

Rob

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By: rjp23 on Tue, 12 July 2011 03:11

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