Unrecognised function in MATLAB

Question

Vedeesh Bali 2020-10-3

0
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https://ww2.mathworks.cn/matlabcentral/answers/604147-unrecognised-function-in-matlab

回答： Priysha LNU 2020-10-6

function [m,s] = stat(x)
    n = length(x);
    m = sum(x)/n;
    s = sqrt(sum((x-m).^2/n));
end
>> values = [12.7, 45.4, 98.9, 26.6, 53.1];
[ave,stdev] = stat(values)
Unrecognized function or variable 'stat'.

Could anyone tell me what's wrong with this? It is literally MATLAB's 'function with multiple outputs' example.

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Vedeesh Bali 2020-10-3

I saved it as a file, but the output did not change :(

Steven Lord 2020-10-3

You saved it as a file, but I'm guessing that file was not named stat.m. See the first Note on this documentation page. If you define a function stat inside a file slow.m then you will need to call the function using the name slow not the name stat.

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Answer 1

Priysha LNU 2020-10-6

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/604147-unrecognised-function-in-matlab#answer_505866

Here is an excerpt from "create functions in files" documentation :

Often, you store a function in its own file. In that case, the best practice is to use the same name for the function and the file (in this example, fact.m), since MATLAB® associates the program with the file name. Save the file either in the current folder or in a folder on the MATLAB search path.

Saving the code to a file named "stat.m" might help you resolve this error.

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