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handling zero size file [message #52563]

Mon, 12 February 2007 14:03

Spam Bob
Messages: 2
Registered: February 2007

Junior Member

I have an idl program that I call from perl. I send the idl program two
files (file1 and file2).

PRO mentor_nf, file1, file2, loc

If both files are nonzero size it runs fine plotting both (this is a two
panel plotting program). If I'm missing some data and either file1 or
file2 is zero size, the program bombs. I would like it to go ahead and
plot the nonzero sized file and just leave the other panel blank.

Here is where the program fails:
DATA1 = READ_ASCII(file1, TEMPLATE=PLOTTEMPLATE)

and this is the error:
% READ_ASCII: File "/data/file1_20060322.dat" is not a valid ASCII file.

I tried the MISSING_VALUE keyword but that didn't change anything.

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