Logic Rules and Functions

Logic Operators:

Equals:               ==
Less than:          <
Greater than:      >
Less or equal:    <=
Greater or equal:>=
Not:                    !
Not equal:          !=
And:                   &
Or:                      |
%in%
Exclusive or:     xor(a, b)
0<=x<=1:           (x>=0)&(x<=1)
NA size:             Just missing