attachLocally.list

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Assigns an objects elements locally

Assigns an objects elements locally.

Keywords
methods, utilities, programming
Usage
# S3 method for list
attachLocally(object, fields=NULL, excludeFields=NULL, overwrite=TRUE,
  envir=parent.frame(), ...)
Arguments
object

An object with named elements such as an environment, a list, or a data.frame.

fields

A character vector specifying elements to be copied. If NULL, all elements are considered.

excludeFields

A character vector specifying elements not to be copied. This has higher priority than fields.

overwrite

If FALSE, fields that already exists will not be copied.

envir

The environment where elements are copied to.

...

Not used.

Value

Returns (invisibly) a character vector of the fields copied.

See Also

attachLocally() of class Object. attach().

Aliases
  • attachLocally.list
  • attachLocally.data.frame
  • attachLocally.environment
  • attachLocally
Examples
# NOT RUN {
foo <- function(object) {
  cat("Local objects in foo():\n")
  print(ls())

  attachLocally(object)

  cat("\nLocal objects in foo():\n")
  print(ls())

  for (name in ls()) {
    cat("\nObject '", name, "':\n", sep="")
    print(get(name, inherits=FALSE))
  }
}

a <- "A string"
l <- list(a=1:10, msg="Hello world", df=data.frame(a=NA, b=2))
foo(l)
print(a)
# }
Documentation reproduced from package R.utils, version 2.8.0, License: LGPL (>= 2.1)

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