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Re: append a matrix after a .dat file which stores all similar matrix [message #38591]

Fri, 12 March 2004 09:24

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

dudebunny writes:

> I have a matrix and I want to append it to the end of LBP.dat file.
> The LBP.dat file should store more than one matrix for later analysis.
> The matrices have uniform size 512x513, where the first row is the
> identifier of the 512x512 matrix. However, I tried:
>
> printf,lun,'$(512F)', arr
>
> which will overwrite the whatever I had previously in LBP.dat.
>
> Any idea how to solve this problem?

OPENU instead of OPENW.

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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