| Read ".mat" files [message #14938] |
Mon, 12 April 1999 00:00  |
Alberto Verga
Messages: 3
Registered: April 1999
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Junior Member |
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Does anyone know how to read binary matlab .MAT files?
".MAT" are binary data files created using the save command in MATLAB,
for example
> a = zeros(100) %define array a(100,100)
> save data a %write array a in file data.mat
Is there any IDL "pro" code to read such files?
Thanks.
A. Verga.
--
verga@marius.univ-mrs.fr
Institut de Recherche sur les Phenomenes Hors Equilibre,
12, av. General Leclerc, F-13003, Marseille, France.
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| Re: Read ".mat" files [message #15011 is a reply to message #14938] |
Tue, 13 April 1999 00:00  |
Nigel Wade
Messages: 286
Registered: March 1998
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Senior Member |
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Alberto Verga wrote:
>
> Does anyone know how to read binary matlab .MAT files?
>
> ".MAT" are binary data files created using the save command in MATLAB,
> for example
>> a = zeros(100) %define array a(100,100)
>> save data a %write array a in file data.mat
>
> Is there any IDL "pro" code to read such files?
>
> Thanks.
> A. Verga.
>
> --
I have a .pro which can read simple MATLAB version 4 files.
By simple I mean full and string matrices but not sparse matrices.
Reading MATLAB version 5 files requires you to use the MATLAB library to
access
the data file as the format of the files is not in the public domain.
This
would require writing a LINKIMAGE interface or a DLM to load the
contents into
IDL variables.
If your data is saved by vn. 4, or you can save it as vn. 4 then you
could try my
routine to see if it loads your data.
BTW, it won't convert the "endian-ness" of the data. The MATLAB data
files must
be the same as the machine architecture.
If you would like to try it, e-mail me and I will send you a copy.
--
-----------------------------------------------------------
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523568, Fax : +44 (0)116 2523555
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