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Matlab support

 
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okonkole



Joined: 01 Jun 2015
Posts: 13

PostPosted: Wed Nov 07, 2018 2:29 pm    Post subject: Matlab support Reply with quote

Hello,

DataGraph currently accepts the import of Matlab files (.mat) with the -v4 format. This type of file has certain limitations, one of them, is the number of characters in the variable name. Could you implement the import of files with the format -v6 (or higher)?

thanks,
Germán
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David
Site Admin


Joined: 25 Nov 2006
Posts: 1966
Location: Chapel Hill, NC

PostPosted: Thu Nov 08, 2018 3:42 pm    Post subject: Reply with quote

I haven't looked recently, but while the v4 format is very easy to figure out I don't have a format description for later formats. If you can point me to that I would look into supporting a more recent format.

David
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okonkole



Joined: 01 Jun 2015
Posts: 13

PostPosted: Tue Nov 13, 2018 10:06 pm    Post subject: Reply with quote

the information Mathworks says is the following: https://mathworks.com/help/matlab/import_export/mat-file-versions.html

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David
Site Admin


Joined: 25 Nov 2006
Posts: 1966
Location: Chapel Hill, NC

PostPosted: Wed Nov 14, 2018 11:15 pm    Post subject: Reply with quote

What I couldn't find was a description of the file format that they created. I see that 7.3 is using HDF5, but since 7 seems to be the default that is the format that would be useful to get the format description for.

David
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okonkole



Joined: 01 Jun 2015
Posts: 13

PostPosted: Thu Nov 15, 2018 10:26 am    Post subject: Reply with quote

Hi David, I found the following information about Matab's files (Level 5 File Format):

https://www.loc.gov/preservation/digital/formats/fdd/fdd000440.shtml
https://www.mathworks.com/help/pdf_doc/matlab/matfile_format.pdf

In the second link, the description begins at page 4.

There are also API for different other programming languages: https://la.mathworks.com/help/matlab/programming-interfaces-for-external-languages.html

it would be amazing if you could call Datagraph from Matlab!.
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