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Hi David
I was under the impression that IDRISI PCA module could only handle
12 byte binary images at a time. How do you get it to run on 84
images? I presume that you are running a macro using version 2?
I am not sure whether the results of a PCA on 204 images will be
interpretable. Is it not possible to divide these images up into
smaller groups on some objective basis before running the PCA?
regards
Mark Robertson
> --- Start of Idrisi List message
> Hi,
>
> I am trying to do a PCA analysis on a set of 204 images, but the PCA
> module crashes with the error 'File not found' partway through the
> first pass. It can handle 84 images but not 96 - it crashes at about
> 80% completion of the first pass. With the full set of 204, the
> module hangs the whole computer.
>
> Has anyone used PCA for large numbers of images, and is there
> anything I can try to get it to run?
>
> Thanks.
>
>
>
> --------------------
> David Baird
> Institute of Cell, Animal and Population Biology
> Ashworth Laboratories
> University of Edinburgh
> Mayfield Road
> Edinburgh
> EH9 3JT
> Scotland
> UK
>
> tel: +44 (0)131 650 8627
> fax: +44 (0)131 667 3210
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********************************************************
Mr M.P. Robertson
Agricultural Research Council - Range & Forage Institute
PO Box 101, Grahamstown, 6140, South Africa
Email - [EMAIL PROTECTED]
Tel. 046 - 6038531 (w) 046 - 6229547 (h) Fax. 046 - 6222398
http://www.ru.ac.za/departments/am/rgi.html
Department of Zoology and Entomology, Rhodes University, Grahamstown
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