Remove objects, which fulfill determined conditions

Source: R/erase.R

Remove objects, which fulfill determined conditions

erase_if(condition, pattern = NULL, envir = parent.frame(),
  verbose = FALSE)

Arguments

condition

function or lambda expression (one side formula)
pattern

regex pattern to select a set of objects; default: NULL
envir

environment; default: caller environment
verbose

print removed objects' names

Value

NULL (function returns nothing)

Details

Function can be used with envir = globalenv() argument.

Examples

create_data <- function() data.frame(a = 1:10, b = 11:20)
x <- cars
y <- 1:20
z <- function(x) x +2
l <- list(1,2,3,4)
erase_if(is.list)
ls()
#> [1] "create_data" "y"           "z"          
# You may use lambda expression
create_data <- function() data.frame(a = 1:10, b = 11:20)
x <- cars
y <- 1:20
z <- function(x) x +2
l <- list(1,2,3,4)
erase_if(~ is.function(.x) | is.data.frame(.x))
ls()
#> [1] "l" "y"