MATLAB Grader: Learner solution.m missing? No such file or directory.

Question

IFM 2021-11-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1579864-matlab-grader-learner-solution-m-missing-no-such-file-or-directory

评论： IFM 2021-11-8

I have used custom code many times to check my learners have written something exact, e.g.

% Get student code
soln = fileread('solution.m')
% Remove white spaces to standardise
NoSpacesSoln = regexprep(soln,'\s+','');
% check for v(k) defined with various spacings
CheckVk = contains(NoSpacesSoln,'v(k)=')

Today, when selecting Validate Reference Solution or Learner Preview, I get:

Error using fileread (line 23) Could not open file solution.m. No such file or directory.

Using ls I see only SolutionTest.m in both cases too. This file appears to contain:

%% ScoringEngineTestPoint1 
%% ScoringEngineTestPoint2 
%% ScoringEngineTestPoint3

I went back to an older problem set my students are using, and this exact code:

soln = fileread('solution.m')

works fine to get the student solution.

Any idea what’s happening?

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Answer 1

Cris LaPierre 2021-11-5

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1579864-matlab-grader-learner-solution-m-missing-no-such-file-or-directory#answer_824719

I can get the same error message if I try to use fileread('solution.m') on a function type problem.

Note that for function type problems, the file name is the same as the function name. Only script-type problems are saved in grader with the name 'solution.m'.