Using num2str inside the for loop

Question

Chiranjibi 2014-11-12

回答： Star Strider 2014-11-12

I'm trying to using num2str inside the for loop;

 firstDay = 1;  
 lastDay = 5;
>> for i= firstDay:lastDay
f = num2str(i);
end

I was expecting f = 1 2 3 4 5, but I got f = 5 only. When I use f(i), this gives error though. Any help would be appreciated.

Answer 1

pietro 2014-11-12

You got only 5 because you haven't used f as an array. Here the right code:

   firstDay = 1;  
   lastDay = 5;
   for i= firstDay:lastDay 
      f(i) = num2str(i);
   end

Chiranjibi 2014-11-12

Thanks, but if I use f(i) this also gives eror.

Answer 2

Star Strider 2014-11-12

I don’t get an error subscripting it in R2014b, but there may be version differences.

A cell array should work:

firstDay = 1;
lastDay = 5;
for i= firstDay:lastDay
      f{i} = num2str(i);
end

Note the curly braces ‘{}’ around the subscript, indicating a cell array.