how to convert 1100111 to 1 1 0 0 1 1 1

Dear All,

I need to convert a matrix of

a=[11100;10000;10101];

to

s=[1 1 1 0 0;1 0 0 0 0;1 0 1 0 1];

to convert s to a we use

char(s+'0');

but how form a to s. Thanks in advance for any help.

regards,

Imola

Answer 1

[Adam]

s = arrayfun( @(x) str2double( x ), num2str( a ) )

[Stephen23]

There is no need to use such complicated and slow code to solve this. For a much faster and simpler solution see my answer below.

Answer 2

[Stephen23]

If a is a numeric column vector, then you can simply use num2str like this:

>> a = [11100;10000;10101]
>> s = num2str(a)-'0'
s =
   1     1     1     0     0
   1     0     0     0     0
   1     0     1     0     1

If a is actually a character array, then simply do this:

>> a = ['11100';'10000';'10101']
>> s = a-'0'
s =
   1     1     1     0     0
   1     0     0     0     0
   1     0     1     0     1

Answer 3

[Azzi Abdelmalek]

a={'11100';'10000';'10101'}
out=cell2mat(cellfun(@(x) x-'0',a,'un',0))