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pban92
Joined: 23 Nov 2009
Posts: 38
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 Posted: Thu Nov 26, 2009 12:51 pm Post subject: READ 'specific' column |
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How to read any specific column from an external file having several columns?
For example, I can read all the three columns by following command:
DO i = 1, n
READ (3,*,IOSTAT=ierr) x(i), y(i), z(i)
END DO
But I understand this wastes the memory if I need only one column, say y(i) or z(i).
Thanks in advance! |
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JohnHorspool
Joined: 26 Sep 2005
Posts: 270
Location: Gloucestershire UK
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| Posted: Thu Nov 26, 2009 1:53 pm Post subject: |
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| Code: | DO i = 1, n
READ (3,*,IOSTAT=ierr) xdummy, y(i), zdummy
END DO |
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pban92
Joined: 23 Nov 2009
Posts: 38
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| Posted: Thu Nov 26, 2009 1:58 pm Post subject: |
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| Thanks a lot John! |
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jjgermis
Joined: 21 Jun 2006
Posts: 404
Location: Nürnberg, Germany
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| Posted: Thu Nov 26, 2009 2:12 pm Post subject: |
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Only a comment: We usualy use void for such "place holders" but this is of course our internal arrangement  |
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