How do I repair the eror?

#How do I repair the error?

 z=Y(1,j)   
zz=cellstr(z)

Answer 1

[Rik]

You need to make sure each element of the cell array is a char vector. Since currently the second one is a cell, you need to unpack it. The code below should result in a cellstr.

z=Y(1,j)   
zz=[z(1) z{2}];

[Ali Nik]

This is an example of my data, the data changes in each stage and it is possible that each stage has different data and it is not always the second data of the cell, and sometimes it is the first cell and sometimes it is both cells.