Cloning ff and ram objects
clone physically duplicates objects and can additionally change
some features, e.g. length.
clone(x, ...) ## Default S3 method: clone(x, ...)
x |
|
... |
further arguments to the generic |
clone is generic. clone.default handles ram objects.
Further methods are provided in package 'ff'.
still.identical returns TRUE if the two atomic arguments still
point to the same memory.
an object that is a deep copy of x
default: default method uses R's C-API 'duplicate()'
Jens Oehlschlägel
clone.ff, copy_vector
x <- 1:12 y <- x still.identical(x,y) y[1] <- y[1] still.identical(x,y) y <- clone(x) still.identical(x,y) rm(x,y); gc()
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