Load .mat file error

Question

Darshan Gade 2021-2-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/746842-load-mat-file-error

评论： Darshan Gade 2021-2-18

Hello All,

I created a coding rules option object and saved it into a .mat file. Whenever i have to perform polyspace verification i just load .mat file ans assign it to option object using following command.

prj.Configuration.CodingRulesCodeMetrics.MisraC3Subset = misraRules;

here 'prj' is polyspace project object and 'misraRules' is coding rules option object.

I am getting following object while loading .mat file.

SWITCH expression must be a scalar or a character vector.

Error in polyspace.option.Item/checkValue

Error in polyspace.option.Item/set.Value

Please guide.

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Rik 2021-2-16

I have never worked with Polyspace, but I don't see where you are actually loading data from a mat file into a variable. Where are you doing that?

Darshan Gade 2021-2-17

sorry for incomplete data. i have commented below.

thanks

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Answer 1

Anirban 2021-2-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/746842-load-mat-file-error#answer_624957

在 MATLAB Online 中打开

You have to share the commands you are using for us to see what might be happening.

If you are simply doing something like this, this seems to work.

>> misraRules = polyspace.CodingRulesOptions('misraC2012'); % Creating rules object
>> misraRules.Section_2_Unused_code.rule_2_1 = false; % Some rule disabling
>> save('file.mat','misraRules') % Saving to mat file
>> clear % Starting from a clean workspace
>> load('file.mat','misraRules') % Loading rules object from mat file
>> proj = polyspace.Project; % Creating project object
>> proj.Configuration.CodingRulesCodeMetrics.MisraC3Subset = misraRules; % Assigning rules to project

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Anirban 2021-2-18

One question: are you generating and loading the mat file using the same release of MATLAB/Polyspace ? Or is it possible that the mat file was generated using a different version? Actually, if you can give the version numbers of your MATLAB and Polyspace, it will help.

Darshan Gade 2021-2-18