Is it Possible to store an if Condition in a String to manipulate later ?

Am I able to do something like this in Matlab? Please advice

aaa = 'r > 0 && r < 5 '; if (aaa) r = r+1; end

Answer 1

[Orion]

you can do that using eval

r=1;
aaa = 'r > 0 && r < 5 '; 
if eval(aaa) 
  r = r+1; 
end
disp(r);

Answer 2

[Guillaume]

If you really want to store your condition in a string, then use eval as Orion said. However, I wouldn't do that as you don't get an syntax check for the code in your string.

Rather, I'd use an anonymous function:

 aaa = @(x) x>0 && x<5; %anonymous function, the name of the variable doesn't matter 
 if aaa(r) r=r+1;