Compares an object with another and returns TRUE if they are equal.
The equal property must be
1) reflexive, i.e. equals(o1,o1) should be TRUE.
2) symmetric, i.e. equals(o1,o2) is TRUE if and only
if equals(o2,o1) is TRUE.
3) transitive, i.e. equals(o1,o2) is TRUE and
equals(o2,o3) is TRUE, then equals(o1,o3) should
be TRUE.
5) consistent, i.e. equals(o1,o2) should return the same
result on multiple invocations as long as noting has changed.
6) equals(o1,NULL) should return FALSE.
By default, the method returns TRUE if and only if the two
references compared refer to the same BasicObject, i.e.
( !is.null(obj) && (hashCode(this) == hashCode(obj)) ).
# S3 method for BasicObject
equals(this, other, ...)
The other object this object should be compared to.
Not used.
Henrik Bengtsson
For more information see BasicObject.