Matlab is not recognizing sections %%
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I am working with Matlab 2018a and for some reason Matlab stop recognizing my sections (%%). Maybe I did something after messing in Home>Preferences, but I'm not really sure. Has anyone had this problem before? I've look online and people say "Enable Cell Mode", but I have no idea how to do this in 2018a.
thanks in advance.
1 个评论
Reza Banaei
2022-1-6
Look for open sentences in your code. Something like
'output' ...
will break the sectioning.
回答（4 个）
Steven Lord
2019-6-18
1 个投票
Look for the message indicator in your file in the Editor. See the first picture on this documentation page for the location of the message indicator. Is it red? If so your code has a syntax error that would prevent it from running successfully, and if your code is not syntactically valid I believe MATLAB will not recognize your sections. Correct the problems that Code Analyzer has identified as red (error) issues and I expect the sections should resune working.
4 个评论
Blake Porter
2019-6-18
Hi Steven, I do not have any errors in the code and it all executes. I gave a more detailed description here: https://www.mathworks.com/matlabcentral/answers/467586-matlab-2018a-editor-no-longer-showing-code-sections
Federico Sansalone
2021-12-22
I solved it simply changing the name of the script file wich was containing spaces! (From "Capacity Problem.m" to "CapacityProblem.m").
ohad akler
2024-3-31
Federico answer works !
Steven Lord
2024-3-31
Yes, MATLAB program file names are not allowed to contain spaces. Otherwise, consider the example Federico Sansalone posted. If you had both "Capacity Problem.m" and Capacity.m, would "Capacity Problem" call the first of those functions with no inputs or the second of those functions with the char vector 'Problem' as input?
Arvind Sathyanarayanan
2019-1-24
0 个投票
Did you turn-off the sections in the Autoformatting menu? 
2 个评论
Blake Porter
2019-6-18
I have the same issue and I have both section break options ticked. Restarted Matlab and computer did not help.
per isakson
2022-1-7
KIDKAWHI
2021-11-17
0 个投票
welp we all stuck in this boat
3 个评论
Federico Sansalone
2021-12-22
I solved it simply changing the name of the script file wich was containing spaces! (From "Capacity Problem.m" to "CapacityProblem.m").
Marion Kreins
2021-12-23
thx, it worked :)
per isakson
2021-12-23
编辑：per isakson
2021-12-23
Spaces in mfile names are not allowed. The "message indicator" of R2018b indicates the error. It's red!
However, in my simple case R2018b still recognizes the sections.
Bruno Tremblay
2024-6-3
0 个投票
This is a huge limitation of matlab. For instance when we debug, we may have part of the code that still "messy", and debugging of sections using %% is not possible until we have cleaned up the entire code.
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