Too many input arguments?

I am getting the following problem when I try to run a cellfun of a length function across a cell array:

>> d_averages = cellfun(@length, values_data, values_data)
??? Error using ==> length
Too many input arguments.

Can someone help me?

[Stephen23]

Note that the output of length depends on the dimensions of the array, and can change unexpectedly. You might like to use numel instead.

Answer 1

[Radha Krishna Maddukuri]

Hi Sumer,

I understand that you wish to use 'cellfun' and you receive an error 'Too many Input Arguments'.

It is as the error states 'length' function can take only one input argument. You can verify this by:

>> help length

Also please try the following code snippet:

>> values_data = {1,2,3}
>> d_averages = cellfun(@length, values_data)

This code will produce the desired result without an error.

[Sumer Vaid]

I actually have 22 cells, each containing strings of varying length for which I want obtain the length. How do you recommend I do this?

[Radha Krishna Maddukuri]

For your use case, you can try the following: say 3 cells each containing 3,4,2 cells respectively:

>> values_data = {{1,2,3},{1,2,3,4},{1,2}}
>> d_averages = cellfun(@length, values_data)
>> total = sum(d_averages)

From here you can see that d_Averages gives the individual lengths and 'sum' gives the total length (3+4+2 = 9).

[Radha Krishna Maddukuri]

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