bit (version 4.0.3)

clone: Cloning ff and ram objects

Description

clone physically duplicates objects and can additionally change some features, e.g. length.

Usage

clone(x, ...)
# S3 method for default
clone(x, ...)

Arguments

x

x an R object

…

further arguments to the generic

Value

an object that is a deep copy of x

Methods (by class)

• default: default method uses R's C-API 'duplicate()'

Details

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.

See Also

clone.ff, copy

Examples

# NOT RUN {
  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()

# }