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Saving plot with variables larger than 2 GB

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I'm trying to save a huge boxplot figure but it is working. I used matfile and it is not saving yet. Any idea?
for i = 1:length(s)
subplot(4,5,i);
filename = (['MC Case (' num2str(i) ') .mat']);
m = matfile(filename);
Demand = m.Demand;
Supply_M = m.Supply_M;
Case = m.Case;
demand = Demand / 365;
supply_M = Supply_M / 365;
BoxPlotFunction(demand,supply_M,Case)
end
savefig('BoxPlot');
  3 Comments
Walter Roberson
Walter Roberson on 1 Mar 2019
Your matfile is only used for reading in data, not for saving data. The saving is being done only by the savefig()
Using the compact option for savefig can help with speed.

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Accepted Answer

Walter Roberson
Walter Roberson on 1 Mar 2019
Edited: Walter Roberson on 1 Mar 2019
If you get an error message about file being corrupt when you savefig, then:
Before doing the savefig(), go into your Preferences -> General -> MAT-Files and select "MATLAB Version 7.3 or later". Then do the savefig(). You might as well specify the compact option as the last parameter since your use of matfile tells us that you do not need big backwards compatibility. The figure saving that is done internally will use the -v7.3 format instead of the -v7 format.
  1 Comment
Yaser Khojah
Yaser Khojah on 1 Mar 2019
Dear Walter thank you so much for your help. This helps a lot and been looking for answer for awhile. Trule thanks :)

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More Answers (1)

Munish Raj
Munish Raj on 1 Mar 2019
Hello Yaser,
The mat file has to be loaded onto the workspace to perform operations on it.
This can be done by using the load command.
load filename
After this is done, you can access those variables the same way you would access any other variable in the workspace.
Your Code will then transalate to
for i = 1:length(s)
subplot(4,5,i);
filename = (['MC Case (' num2str(i) ') .mat']);
load filename
demand = Demand / 365;
supply_M = Supply_M / 365;
BoxPlotFunction(demand,supply_M,Case)
end
savefig('BoxPlot');
  2 Comments
Yaser Khojah
Yaser Khojah on 1 Mar 2019
Thanks Munish Raj for your help. I was looking for away to store my data as Walter did. Thank you so much both for taking the time to write these answers.

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