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Re: Loading of Matlab 5 Files

From: Andy Adler
Subject: Re: Loading of Matlab 5 Files
Date: Fri, 17 Oct 1997 13:32:50 -0600 (MDT)

>| MH> MATLAB v5 can save data in a v4-compatible way, if you don't use
>| MH> the new features of v5.   
>| MH> From help save: 
>| MH> SAVE fname X Y Z  -v4  saves a MAT-file that MATLAB 4 can LOAD.
>| Thank you. I know this option. The reason of my question was that the
>| exchange of data with Matlab users becomes more difficult, when you
>| have to ask them to save the data in a special way. So, if octave
>| still wants to be matlab-compatible in the way that I can write programs
>| which can be used in octave as well as in matlab, then the
>| implementation of the new binary format seems to be necessary.
>Are the specs for the Matlab 5 binary file format publicly available?
>If so, would anyone be interested in writing the code for Octave?

It doesn't appear to be that way...
I just looked at
Is there any documentation on the structure of  MAT-Files in MATLAB 5?

Currently, there is no documentation available regarding the MATLAB 5
MAT-File structure. There are no plans to publish this information.
We recommend using our MAT routines for creating MAT-files in MATLAB 5.

Please note that MATLAB 5 does still read MATLAB 4.x MAT-files.
Therefore, if you have code that you used in MATLAB 4.x to create
MAT-files, you can still create MAT-files with this code and read the
MAT-files into MATLAB 5.

You will not have access to the new data types supported in MATLAB 5
if you use your old code.  For this, we recommend using the MAT
routines provided in the MATLAB Programming Interface.
[ cut ]
Date Last Modified: Jul 31 1997 

This really offends me. I'm not as diehard a free software fan
as some. But, after all, it is _MY_ data. If I save data with Matlab,
then they got me locked into buying Matlab to access my data.

Sorry for whining in the forum. I'll go and whine on
comp.soft-sys.matlab as penance.

I would offer to take on this project. But unless Matlab changes their
mind... there's not much I could do. On the other hand, we could
try to reverse engineer the interface, but then we're not garuanteed
that what we have won't change with the next version.
Andy Adler,    | Pulmonary Physiology Unit         | Lab 303-398-1626
address@hidden | National Jewish Center,Denver,USA | Fax 303-398-1607

   For the Snark _was_ a Boojum, you see.    -Lewis Carroll

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