Arranging values in an array

I have some values in an array that I need to organize in ranges. lets say I am given different ages of people and I want to arrange them by their age group.

0-10, 11-20, 21-30, 31-40 I have been working on some code but I am uncertain how to finish it. Here is my code. Even just printing how many are in each range is fine with me.

Any help is greatly appreciated!

x = [3, 4, 8, 9, 9, 12, 12, 14, 14, 15, 17, 19, 21, 21, 22, 25, 27, 31, 32, 35, 35, 38];

for i = 1:size(x,1);

    if(x <= 10);

    elseif(x >=11)&(x <=20);

    elseif(x >= 21)&(x <=30);

    elseif(x >=31);

    else
    fprintf 'No values match your conditions\n'
    end
end

Answer 1

[Image Analyst]

You can do what you tried if you want to execute some code depending on the value. Or you can use histc(), if that's what you mean by organize.

x = [3, 4, 8, 9, 9, 12, 12, 14, 14, 15, 17, 19, 21, 21, 22, 25, 27, 31, 32, 35, 35, 38]
ranges = [0,11,21,31,41]
counts = histc(x, ranges)

In the command window:

x =
  Columns 1 through 14
     3     4     8     9     9    12    12    14    14    15    17    19    21    21
  Columns 15 through 22
    22    25    27    31    32    35    35    38
ranges =
     0    11    21    31    41
counts =
     5     7     5     5     0

[QuantumReversing]

awesome that is exactly what I was looking for. I guess I need to familiarize myself with built in functions of MATLAB instead of trying to manually do it with C code.