How to convert a matrix to a string array:

I have a matrix:

R=[1 2 1 3 2 3 1;1 1 2 1 2 2 3];    

that i want to convert to:

Q=["A11","A21","A12","A31","A22","A32","A13"];

How can I do that?

Appreciated!

Answer 1

[Andrei Bobrov]

"A" + R(1,:)' + R(2,:)'

[Scott MacKenzie]

Nice. I submitted an answer, but deleted it when I saw this one. Awesome.

[SM]

What an excellent asnwer! Really awesome. Is it possible to do the reverse, i.e. string to the matrix?

[Walter Roberson]

cell2mat(arrayfun(@(s)sscanf(s, "%*c%1d%1d"),Q,'UniformOutput',false)).'

[SM]

Thank you

Answer 2

[Walter Roberson]

R=[1 2 1 3 2 3 1;1 1 2 1 2 2 3]

R = 2×7

1 2 1 3 2 3 1 1 1 2 1 2 2 3

compose("A%d%d", R(1,:).', R(2,:).').'

ans = 1×7 string array
    "A11"    "A21"    "A12"    "A31"    "A22"    "A32"    "A13"

[SM]

You are awesome! Thank you.