MATLAB: More help with probability…

probabilitystrcmpi

Hey, so I fixed the first part of this code, but now the for loop where I use "strcmpi" is not working properly. It's only accounting for "peach' and my peach_count returns 100000 and the other fruits are 0. It's really weird because my function works fine.
    function x = produce
    A = 1e5;
    B = rand;
    C = ceil(A*B);
    if (C>=1 && C<= 20000);
        C = 'peach';
    elseif (C>= 20001 && C<= 55000);
        C = 'panana';
    elseif (C >= 55001);
        C = 'papaya';
    end 
    x = C 
    clc; clear all; 
    peach_count = 0; panana_count = 0; papaya_count = 0;
    N = 1e6;
    for k = 1:N
       fruit = produce;
       if strcmpi(fruit,'peach')
          peach_count = peach_count + 1;
       elseif strcmpi(fruit, 'panana')
           panana_count = panana_count + 1;
       elseif strcmpi(fruit, 'papaya')
           papaya_count = papaya_count + 1;
       end
    end
What am I doing wrong??

Best Answer

Just pay attention to how you use function call inside a program. Either you have two files as stated above, or use one main (calling function) which contains another (inner) function as:
% This is the main (calling) function
function output=firstFunction
    peach_count = 0; panana_count = 0; papaya_count = 0;
    N = 1e6;
    for k = 1:N
       fruit = produce;
       if strcmpi(fruit,'peach')
          peach_count = peach_count + 1;
       elseif strcmpi(fruit, 'panana')
           panana_count = panana_count + 1;
       elseif strcmpi(fruit, 'papaya')
           papaya_count = papaya_count + 1;
       end
    end
    output=[peach_count;panana_count;papaya_count];
 % Here is the inner function 
  function x = produce
      A = 1e5;
      B = rand;
      C = ceil(A*B);
      if (C>=1 && C<= 20000);
          C = 'peach';
      elseif (C>= 20001 && C<= 55000);
          C = 'panana';
      elseif (C >= 55001);
          C = 'papaya';
      end 
      x = C;
So, when you run:
 OutPut=firstFunction
 OutPut=
        200191
        349241
        450568
Note: The output varies since it's based on a random creation.
Regards
Related Question