Keep only specified objects in the environment, removing all others.

This function selectively retains the objects specified in the Obj parameter in the current environment, removing all other objects. It is useful for memory management by clearing unnecessary objects from the environment. The function also provides an option to print the names of the kept and removed variables.

Usage

KeepOnly(Obj, Verbose = TRUE)

Arguments

Obj

A character vector specifying the names of the objects to be kept in the environment.

Verbose

A logical value indicating whether to print the names of kept and removed variables. Default to TRUE.

Value

No return value, called for side effects.

Author

Ahmed El-Gabbas

Examples

A <- B <- C <- 15
ls()
#> [1] "A" "B" "C"

KeepOnly("A")
#> Removed Variables (2): 1:B ||  2:C
#> Kept Variables (1): 1:A

ls()
#> [1] "A"
rm(list = ls())


A <- B <- C <- 15
KeepOnly(c("A","B"))
#> Removed Variables (1): 1:C
#> Kept Variables (2): 1:A ||  2:B
ls()
#> [1] "A" "B"