How to join a string cellarray row by row with a specified delimiter

If i have a cellarray "text",

text = {
    'a' 'b' 'c'
    'X' 'Y' 'z'
    '1' '2' '3'
    }; % a 3x3 cell

the desired output should be in a row by row concatenation with a comma:

     'a,b,c'
      'X,Y,z'
      '1,2,3'

however,

result = strjoin(text,',')

will only give a result like this:

'a,X,1,b,Y,2,c,z,3'

Answer 1

[MathWorks Support Team]

Starting from R2016b this could be solved rather easily: join(text,','). However, "join" was implemented differently before 2016b and it will give a result like this: 'a,X,1,b,Y,2,c,z,3' (not a row by row concatenation as the customer desires)

The simplest solution before 2016b will just be using a for loop to concatenate the cell array row by row as vectorization is not possible.

result = cell(size(text,1), 1);
for i = 1: size(text, 1)
    result(i, :) = {strjoin(text(i, :), ',')};
end