How can convert binary Numerical Values to Strings?

let's say I Have a Matrix M which contains only binary values of 0 and 1

M = de2bi (0:10)

How can I convert that into a Matrix which is comprised of Strings (e.g. 'black' & 'white', or 'zero' & 'one') instead of the 0's and 1's ?

0 1 0 1

0 0 0 1

0 1 0 0

1 0 0 1

to

black white black white

black black black white

black white black black

white black black white

Answer 1

[Image Analyst]

How about

ca = cell(size(yourMatrix)); % Preallocate cell array
for k = 1 : numel(ca)
    if yourMatrix(k)
        ca{k} = 'white '; % yourMatrix is 1
    else
        ca{k} = 'black '; % yourMatrix is 0
    end
end

[William Collants]

(just for perfectionism) any way to hide the { }, [ ] and ' ' etc in the resulting Array?

[Stephen23]

"any way to hide the { }, [ ] and ' ' etc in the resulting Array?"

Those are not actually part of the array in memory, they are just artefacts of the display routine that MATLAB uses. If you want to display the data differently, then you can write your own display routine based on fprintf.

Answer 2

[James Tursa]

E.g.

>> b = rand(5)<.5  % generate some sample data
b =
  5×5 logical array
   0   0   0   1   1
   0   1   0   1   1
   1   1   1   0   0
   0   1   0   0   0
   1   1   1   1   0
>> s = {'black','white'}; % the strings you want for 0 and 1
>> c = s(b+1)
c =
  5×5 cell array
    {'black'}    {'black'}    {'black'}    {'white'}    {'white'}
    {'black'}    {'white'}    {'black'}    {'white'}    {'white'}
    {'white'}    {'white'}    {'white'}    {'black'}    {'black'}
    {'black'}    {'white'}    {'black'}    {'black'}    {'black'}
    {'white'}    {'white'}    {'white'}    {'white'}    {'black'}

[Walter Roberson]

categorical(c)