Comparison Operators

Binary comparison operators for Container() objects and derived classes.

# S3 method for Container
==(x, y)

# S3 method for Container
!=(x, y)

# S3 method for Container
<(x, y)

# S3 method for Container
>(x, y)

# S3 method for Container
<=(x, y)

# S3 method for Container
>=(x, y)

Arguments

x, y

at least one must be a Container() object (or an object of one of the derived classes) while the other must be at least iterable.

Details

• x == y is TRUE if the contents of x and y are lexicographically equal.

• x != y is TRUE if the contents of x and y are not equal.

• x < y is TRUE if the contents of x are lexicographically less than the contents of y.

• x <= y is TRUE if the contents of x are lexicographically less than or equal to the contents of y.

Examples

c1 = container(1, 2, 3)
c2 = container(1, 3, 2)
c1 == c1            # TRUE
#> [1] TRUE
c1 != c2            # TRUE
#> [1] TRUE
c1 <= c1            # TRUE
#> [1] TRUE
c1 == c2            # FALSE
#> [1] FALSE
c1 < c2             # TRUE
#> [1] TRUE
c1 < container(2)   # TRUE
#> [1] TRUE
c1 < container()    # FALSE
#> [1] FALSE