IndexList or a SignedIndexList objectoffset-set.RdSet the offset of an IndexList or a SignedIndexList object
`offset<-`(object, value)
# S4 method for IndexList,numeric
offset(object) <- value
# S4 method for SignedIndexList,numeric
offset(object) <- value| object | An  | 
|---|---|
| value | The value, that the offset of  |