How to check the input from user is "positive integer Number" ?

I will receive input form user and i need to make sure the entered data is a number ( integer Only )

If the user enter string or char between numbers or negative number or special character.

I need to know the function in these above cases.

Thanks

Answer 1

[Star Strider]

It is straightforward to write a simple anonymous function that will return 1 (true) when those conditions are met:

int_gt_0 = @(n) (rem(n,1) == 0) & (n > 0);      % Returns 1 For Integers Greater Than 0

v = [-2 -1 -0.9 0 0.9 1 2]                      % Test Arguments

result = int_gt_0(v)                            % Test The Function

produces:

v =
  -2     -1    -0.9      0    0.9     1      2

result =
   0   0   0   0   0   1   1

Answer 2

[Rik]

Check out validateattributes or isstrprop.