how create cell array of blank space " "

cell(1,5)

ans = 1×5 cell array
    {0×0 double}    {0×0 double}    {0×0 double}    {0×0 double}    {0×0 double}

Answer 1

[Voss]

Cell array:

C = repmat({' '},1,5)

C = 1×5 cell array
    {' '}    {' '}    {' '}    {' '}    {' '}

or:

C = cell(1,5);
C(:) = {' '}

C = 1×5 cell array
    {' '}    {' '}    {' '}    {' '}    {' '}

A string array may be useful too:

S = repmat(" ",1,5)

S = 1×5 string array
    " "    " "    " "    " "    " "

or:

S = strings(1,5);
S(:) = " "

S = 1×5 string array
    " "    " "    " "    " "    " "