How can I count frequency in array?

I try to make a code which count the frequency of number in an array but the number output is incorrect. my coding:

clc; clear; element = zeros (1,50); ctr=1; i=1; freq=0;

    num = input('Please state how many numbers you want to input: ');

    while (ctr <= num) %input number in array

     element (ctr) = input( 'Enter number: ');

     ctr = ctr+1;
    end

    for ctr=1:1:num  %to arrange number in descending

     for  i=1:1:num
            if element (i) < element (i+1) 

                     temp = element(i);
                     element (i) = element (i+1);
                     element (i+1) = temp; 

             end

     end

     end

disp('N Count');

for y=1:1:num %counting frequency of number

k = element(y);

    if k ~= element (y+1) 

             for x = y:1:num

                    if k == element (x+1) 
                     freq = freq+1;
                    end

             end
             fprintf('%d','%d',k, freq);

    end
freq=0;

end

 pause;

The output is as follow:

Please state how many numbers you want to input: 2 Enter number: 1 Enter number: 2 N Count 37100203710010

Answer 1

[George]

fprintf prints to a file. You want to use sprintf. Also, your formatSpec is wrong. You want to define it as one string. Something like:

str = sprintf('%d %d', k, freq);
disp(str)

Should work.

[George]

Also there are more MATLABy ways to do what you're trying to do. eg:

sum(nnz(A == 3))

will give you the sum of non-zero elements of the logical array A==3. This, effectively, tells you how many elements of A are equal to 3.

[fizz gerbera]

thanks george. it can print the answer fine now. i tried to your suggestion.my coding is as follows, but i cant seem to make it work.

     while k<=num
     sum(nnz(A == k));
     fprint('%d', k);
     k=k+1;
    end

[George]

You should not be using fprintf.