How can I select the working dimension by supplying the DIM argument?

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Shubhashree Bal 2019-11-7

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https://ww2.mathworks.cn/matlabcentral/answers/489707-how-can-i-select-the-working-dimension-by-supplying-the-dim-argument

回答： Steven Lord 2020-10-19

While generating C code for below code:

a= [1 2 3 4 5];

u = a/max(a);

I am getting error:

The working dimension was selected automatically, is variable-length, and has length 1 at run time. This is not supported. Manually select the working dimension by supplying the DIM argument.

How can I solve this?

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John D'Errico 2019-11-7

Read the help for max. Look at the various ways you can use the max function.

Rutvik Shete 2020-10-19

Use elementwise division. u = a./max(a); "dot" is important.

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Answer 1

Steven Lord 2020-10-19

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https://ww2.mathworks.cn/matlabcentral/answers/489707-how-can-i-select-the-working-dimension-by-supplying-the-dim-argument#answer_518123

In the Extended Capabilities section of the documentation page for the max function, expand the "C/C++ Code Generation" item. The page linked in the third bullet in that item, "Variable-Sizing Restrictions for Code Generation of Toolbox Functions", offers some explanation and a suggestion for how to resolve the problem.