repmat usage for cellarray

data = 32 x 1
double_array=[repmat(data,1,286);]; %= 286 x 32 double

Now, I need to replace data with data_string as follows:

data_string = 32 x 3 char aray

Then, I need to create cell array using the above repmat operation. I tried the below but it gave error:

cell_array=repmat({data_string,1,286});

What is the proper way to construct cell_array matrix? My matlab version is 2019a.

Answer 1

[Jan]

If this is what you want:

cell_array = PG01 PG02 PG03 . . . PG32
             PG01 PG02 PG03 . . . PG32
             .    .     .   . . . PG32             

use:

cell_array = repmat(sprintf('PG%02d', 1:32), 286, 1)

In your call:

cell_array=repmat({data_string,1,286});

you provide a cell as input of repmat. But then the number of repetitions are missing. Mayby you mean:

cell_array=repmat(data_string, 1, 286);

Answer 2

[Chunru]

data_string = reshape(char(32:127), 3, [])  % some characters32 x 3 char aray

data_string = 3×32 char array
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    '"%(+.147:=@CFILORUX[^adgjmpsvy|'

cell_array=repmat({data_string},1,3)

cell_array = 1×3 cell array
    {3×32 char}    {3×32 char}    {3×32 char}

cell_array{3}

ans = 3×32 char array
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    '!$'*-0369<?BEHKNQTWZ]`cfilorux{~'
    '"%(+.147:=@CFILORUX[^adgjmpsvy|'

[sermet OGUTCU]

Dear @Chunru, your codes didn't produce the result it should when using my data:

data=[1:1:32];
double_array= 1 2 3 . . .  32
              1 2 3 . . .  32
              . . . . . .  .
              1 2 3 . . .  32    ==  286 x 32 double (after [repmat(data,1,286);]; )

data_string =

32×3 char array

'G01'

'G02'

'G03'

.

.

'G32'

So after the last repmat operation, cell_array should be:

cell_array = PG01 PG02 PG03 . . . PG32

PG01 PG02 PG03 . . . PG32

. . . . . . PG32