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Re: We have file_lines for lines in IDL. What about file_rows? [message #53231]

Wed, 28 March 2007 09:42

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

DirtyHarry writes:

> I know there is an excellent functions to count the number of lines of
> data file...
>
> What about file_rows? Is there any functions to check the number of
> rows?
>
> If there is no functions, what can I do if I want to have the number
> of rows of a big data file, for example, (*, 169245)? I found the
> number of lines using file_lines function. The number of rows around
> 100, but I need the exact number. Do I have to count one by one?

Uh, rows *are* lines. Perhaps you are looking for columns.
Here is an article:

http://www.dfanning.com/fileio_tips/read_columns.html

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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Re: We have file_lines for lines in IDL. What about file_rows?

By: David Fanning on Wed, 28 March 2007 09:42

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