% ISINTEGER ISINTEGER Test for Integer Array
% 
% Usage
% 
% The syntax for isnumeric is
% 
%   x = isnumeric(y)
% 
% and it returns a logical 1 if the argument is an integer.
% The decision of whether the argument is an integer or not
% is made based on the class of y, not on its value.
function x = isinteger(y)
  x = any(strcmp({'uint8','int8','uint16','int16','uint32','int32','uint64','int64'},class(y)));