More on memory usage problems

[Nose Nada]

Hello there again!

I have other problems with memory usage in Octave that I didn't comment in
my previous post ("Memory usage problems", 8/8/2008 at 1:20 am).
All start with a tab delimited .txt datafile of 25MB. When I use 'xlsread'
to extract the numeric and the string data from this file and save it in a
new binary file, it takes a long time because my 3GB of RAM are consumed and
around 300MB of swap are used. Still, after 2 hours I have a binary file
containing the numeric and the string data output by "xlsread". The
resulting binary file has 280MB and it is the input of the "load" I
described in my previous post. I get rid of "xlsread" and used fread
instead, but the problem persists.
Why is the resulting binary 10 times bigger than the original .txt?
Why the use of RAM far exceeds the size of the data file I'm dealing with?

I'm stuck here. This issue don't allow me to go ahead with my work. I would
appreciate to have some feedback.

Best regards,

Omar
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