Hello,
Use ?assign instead. And there was a bug in manipulate_e1, it would
throw an error a not found.
create_e1 <- function(){
assign("e1", new.env(), envir = globalenv())
exists('e1', mode = 'environment')
}
manipulate_e1 <- function(a){
if ( exists('e1', mode = 'environment') ) {
assign(a, 1, envir = e1)
TRUE
} else {
FALSE
}
}
create_e1()
#> [1] TRUE
exists('e1', envir = globalenv())
#> [1] TRUE
x <- "vec"
e1$vec
#> NULL
manipulate_e1(x)
#> [1] TRUE
e1$vec
#> [1] 1
Hope this helps,
Rui Barradas
Às 21:29 de 30/03/2022, Sebastien Bihorel escreveu:
Hi
I am trying to create a set of functions to create and manipulate objects
within a dedicated environment, which I was hoping to put directly under the
global environment. However, my implementation (see code below) is facing some
scoping issues: the environment created by one function does not appear to be
accessible from outside the function.
What would be the proper way to create a manipulation an environment in
different functions?
Thanks
```
create_e1 <- function(){
e1 <- new.env(parent = globalenv())
exists('e1', mode = 'environment')
}
create_e1()
manipulate_e1 <- function(){
if ( exists('e1', mode = 'environment') ) {
assign(a, 1, envir = e1)
TRUE
} else {
FALSE
}
}
exists('e1', envir = globalenv())
manipulate_e1()
```
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