error of All contents of the input cell array must be of the same data type.

cellArray =

    'p4004'

    [4005]

    [4007]

    [4009]

    [4015]

    cellArray      5x1              1202  cell

% when I perform

cellArray=cell2mat(cellArray)

it gives " All contents of the input cell array must be of the same data type." the error.

%I need to perform these transformations to get cell array of strings

cellArray=cell2mat(cellArray)

cellArray=num2str(cellArray)

cellArray=cellstr(cellArray)

Answer 1

[Azzi Abdelmalek]

'p4004' is a string when the other data are double. you can't use cell2mat with mixed data types

If you need to extract a number from 'p4004'

cellArray ={'p4004' [4005] [4007]}
a=cellfun(@num2str,cellArray,'un',0)
b=regexp(a,'\d+(\.)?\d+','match')
c=cellfun(@str2double,b)

Answer 2

[Nikola Mirkov]

Hey Sermet,

Even easier:

cellArray(cellfun(@ischar,cellArray)) = {nan};
cellArray  = cell2mat(cellArray);

Best,

niko