equals.Object: Compares an object with another
Description
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 nothing 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 Object, i.e.
( !is.null(obj) && (hashCode(this) == hashCode(obj)) ).Usage
## S3 method for class 'Object':
equals(this, other, ...)
Arguments
other
The other object this Object should be compared to. Value
- Returns
TRUE if the Object's are equal, otherwise code{FALSE}.
}
examples{
o1 <- Object()
o2 <- clone(o1)
equals(o1, o1) # TRUE
equals(o1, o2) # FALSE
}
seealso{
code{*hashCode()}.
For more information see code{Object}.
}
author{Henrik Bengtsson (url{http://www.braju.com/R/})}
keyword{programming}
keyword{methods}
keyword{internal}
keyword{methods}