How to apply a cell array of function handles to a cell array of arguments

Question

Jim 2016-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/298132-how-to-apply-a-cell-array-of-function-handles-to-a-cell-array-of-arguments

评论： Jim 2016-8-2

I have an MxN cell array fha of type conversion function handles (@double, @char, etc) that I'd like to apply element-by-element to an MxN cell array of strings x, but am struggling with the correct syntax. I've tried:

cellfun(@(s,t) s(t), fha, x, 'uni', 0)

which returns error in @(s,t)s(t) -- index exceeds matrix dimensions, and also:

cellfun(@(s,t) (s,t), fha, x, 'uni', 0)

but that's also flagged as incorrect -- possible unbalanced (, {, or [. Anyone got a clue?

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Answer 1

Thorsten 2016-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/298132-how-to-apply-a-cell-array-of-function-handles-to-a-cell-array-of-arguments#answer_230567

在 MATLAB Online 中打开

Use nested cellfun calls

X = cellfun(@(fha_i) cellfun(fha_i, C, 'Uni', false), fha, 'Uni', false)

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Jim 2016-8-2

Sorry, that returns an MxN cell array of MxN cell arrays (interesting, though). But it's all good -- my 1st try worked once I gave it the right fha argument.

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