Calling options for function handles using cellfun

Question

Layla 2012-5-2

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/37228-calling-options-for-function-handles-using-cellfun

I am confused about how to include options from built-in functions in a cellfun command. When I attempt either of the following commands:

X_member = cellfun('ismember',AllCoordinates, X, 'rows', 'UniformOutput', false)

or

X_member = cellfun(@ismember,AllCoordinates, X, 'rows', 'UniformOutput', false)

I get this error message: Error using cellfun Too many inputs.

I want 'ismember' to operate across rows in the matrices in each cell that I have. AllCoordinates is a 20x1 cell each containing 70000x3 matrices. X is a 20x1 cell containing matrices of different row numbers, but all have 3 columns. Does anybody know how to properly structure that command? Thanks in advance!

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Answer 1

Sean de Wolski 2012-5-2

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In order to use ismember with the 'rows' option, you need to build this into the function handle, not cellfun().

Something like:

cellfun(@(c,x)ismember(c,x,'rows'),AllCoordinates,X,'uni',false);

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Layla 2012-5-2

Thanks! Is there no other way to include function options when using cellfun? I know this method of calling cellfun is the slowest of all three unfortunately (when calling a function like ismember without using any additional options).

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