String to variable name MATLAB

Question

If for instance I have a variable xa=2, and then I construct a string by joining \'x\' and \'a\', how can I make this new string have the value 2?

xa=2;
var=         


        

Answer 1

Use eval():

var = eval(strcat('x','a'));

It will "evaluate" the string 'xa' and translate it to the value of the variable xa.

Source : MATLAB documentation