Cell2mat for cell arrays with numeric strings of different size in Matlab

Question

Hi I have a cell array which I want to convert to a matrix:

a = {'1.2'; '1.3'; '1.45'}
cell2mat(a)

Gives me the error:

Error using cat
CAT arguments dimensions are not consistent.

Error in cell2mat (line 84)
            m{n} = cat(1,c{:,n});

Please help thank you!

You have a cell array of chars. Use str2double: >> str2double(a) — Paolo
– Paolo, Commented Dec 7, 2018 at 10:26

Wolfie · Accepted Answer · 2018-12-07 16:04:25Z

4

cell2mat fails because it's expecting numeric elements in the cell array, to be placed in a matrix. You have character arrays, not numeric elements, so you need to use str2double to convert them to doubles (the output is a matrix as desired).

a = {'1.2'; '1.3'; '1.45'};
out = str2double( a );

answered Dec 7, 2018 at 16:04

Wolfie

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Comments

A. Syam · Accepted Answer · 2018-12-07 13:20:35Z

-1

You may try the below one:

a = {[1.2]; [1.3]; [1.45]}
cell2mat(a)

answered Dec 7, 2018 at 13:20

A. Syam

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1 Comment

Wolfie Over a year ago

This doesn't take the same inputs as stated in the OP (i.e. you're inputting a cell of doubles, the OP has a cell of chars), so this doesn't answer the question.

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