gusucode.com > cryptography_matlab_codes > cryptography_matlab_codes/text2int1.m
function y = text2int1 (x) % This function takes the letter in the string x and converts % it to an integer. % The convention for this function is % ' ' --> 0 % a --> 1 % b --> 2 % and so on... [s1,s2]=size(x); yvec=x - 'a'+1; inds=find(yvec<1); yvec(inds)=zeros(size(inds)); % set all the spaces to a value of 0 % Now we must convert to a number y=zeros(s1,1); for k=1:s1, for j=0:s2-1, ind=s2-j; y(k)=y(k)+yvec(k,ind)*100^(j); end; end;