erase_if {eponge} | R Documentation |
Remove objects, which fulfill determined conditions
erase_if(condition, pattern = NULL, envir = parent.frame(),
verbose = FALSE)
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 |
Function can be used with envir = globalenv() argument.
NULL (function returns nothing)
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()
# 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()