Error using cell/ismem​ber>cellis​memberR201​2a error

% belows came from command window not codes,

txt1 =

    'p4004'
    [4005]
    [4007]
    [4009]
    [4015]
    [4020]
    [4031]
    [4037]
    [4041]
    [4151]

cc =

    'p4004'

Name            Size            Bytes  Class      Attributes

 txt1           10x1              1202  cell       global    

 cc              1x1               122  cell       global

%when I perform this code

[row,col] = ismember(txt1,cc)

%it gives Error using cell/ismember>cellismemberR2012a error. I didn't understand what is wrong, txt1 and cc are cells. When I create txt1 and cc matrixes in workspace like txt1=[{'p4004'},{'4005'},{'4007'},{'4009'}]..... it works without any error.

Answer 1

[per isakson]

AFAIK and understand the documentation: ismember doesn't take a cell array, which contains different types of data. In your case double and string.

[sermet]

How can I fix this?

[per isakson]

You have to make txt1 a cell array of strings.

You already know that

   txt1=[{'p4004'},{'4005'},{'4007'},{'4009'}];

is one way to make such an array. This creates the same result a bit simpler

    txt1={'p4004','4005','4007','4009'};

How did you create

    txt1 =
        'p4004'
        [4005]
        [4007]
        ...