Load .mat file error

2021 2 16
1 个回答
更新时间：2021 2 18
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0 个投票

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
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
Darshan Gade 2021-2-17
sorry for incomplete data. i have commented below.
thanks

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回答（1 个）

Anirban
Anirban 2021-2-16

0 个投票

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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Darshan Gade
Darshan Gade 2021-2-17
Thats exactly what i did to create file.mat (first 3 lines). Once file.mat is available in current directory, for first run of polyspace verification i am not getting any Errors, but if i clear everything and again tried to do load file.mat file, i am getting error mentioned in qiestion.
my code:
load('MisraRules.mat');
prj = polyspace.Project;
prj.Configuration = polyspace.ModelLinkOptions([ModelName, '_ac']);
prj.Configuration.CodingRulesCodeMetrics.MisraC3Subset = misraRules;
prj.Configuration.CodingRulesCodeMetrics.EnableMisraC3 = true;
note in my case file.mat is MisraRules.mat and [ModelName_'ac'] is my simulink model name.
Anirban
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
Darshan Gade 2021-2-18
I think that could be the issue as .mat file is created with MATLAB\polyspace 2020b and i am using it on MATLAB\Polyspace 2018b

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