Re: MAT files saved much larger then expected

[Mark popov]

Hi Mike,

Thanks, you were right, it made the difference.
:)

Mark


On Thu, Apr 13, 2017 at 6:33 PM, Mike Miller-4 [via Octave] <
address@hidden> wrote:

> On Thu, Apr 13, 2017 at 01:05:51 -0700, Mark popov wrote:
>
> > Hi,
> >
> > I'm accustomed to Matlab, using it for around 12 years, and now started
> > using Octave as well.
> >
> > I've noticed something strange - saving .mat files, might result with
> much
> > higher size than expected.
> > For example, saving a .mat file which contains a single struct of ~380
> > cells, each one's size of ~1MB, results with an overall file size of 1GB
> > (instead of just 380MB).
> > The size of the RAM memory actually seems OK, only when writing to the
> > hard-drive its size explodes.
> > Furthermore, loading it takes considerable amount of time, and it's much
> > more efficient to load the same data from distributed 400 different mat
> > files.
>
> Did you perhaps forget to include the -mat option? You may have assumed
> that would be the default format, but it is not. See "help save".
>
>   save file1.mat        ## file1.mat is Octave text format
>   save -mat file2.mat   ## file2.mat is Matlab binary format
>
> --
> mike
>
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