Binary string to character conversion

Hello, If I have a string, S = 001000110111 Given:

a = 0

b = 10

c = 110

d = 111

I need to convert the string using that key.

So converted_S = aabaacd

How can I do this? Thanks.

Answer 1

[Grzegorz Knor]

S = '001000110111';

a = '0';
b = '10';
c = '110';
d = '111';

S = strrep(S,d,'d');
S = strrep(S,c,'c');
S = strrep(S,b,'b');
S = strrep(S,a,'a')

[Brandon]

Nice solution, but this doesn't quite work without error. My actual string is 256,000 characters, with this I get a string with length 258,446. Seems like strrep doesn't go in order.

[Brandon]

Example:

X = 'aabdcaaabcdcdba';

W = '001011111000010110111110111100';

This code produces:

W = 'aabdddaaaabcdddaddaa'

[Brandon]

Figured it out! Use regexprep instead of strrep. Thanks for leading me in the right direction, much better than the for loop I was trying to use.

[Grzegorz Knor]

regexp works correctly in this case :) strrep first looks for patterns, and then replace it.

[Abirami]

hello, i need to do the same thing for a 256x256 matrix...pls help...