Hello,
I have the following list
This list has 6 dataframes. Then I need to extract them to my global enviroment using their names, like this:
I have been using this code:
Is there any elegant lapply solution?
Hello,
I have the following list
This list has 6 dataframes. Then I need to extract them to my global enviroment using their names, like this:
I have been using this code:
Is there any elegant lapply solution?
Did you try list2env
? Is it not enough for you?
https://stat.ethz.ch/R-manual/R-devel/library/base/html/list2env.html
Here's a mapply
solution, which can be wrapped inside invisible
:
mapply(function(name, value) assign(name, value, envir=globalenv()), names(datalist), datalist)
(not tested)
If the motivation for doing this is to improve the ease of interactive analysis work, i.e. to save ones typing while one plays with the data, there is a possible alternative to consider.
attach() and detach() can be used to add ( and remove) items to the search path, effectively it means you can treat an attached object as if its names components were present in your immediate environment, whens they arent. It makes it as though you typed out the full name effectively.
i.e.
wantlist <- list(a1 = mtcars,
a2=iris)
head(a1)
# as expected : Error in head(a1) : object 'a1' not found
head(wantlist$a1)
# gets what I want but annoying to type each time
attach(wantlist)
# more convenient
head(a1)
head(a2)
# restore old behaviour
detach("wantlist")
head(a1)
# as expected : Error in head(a1) : object 'a1' not found
This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.
If you have a query related to it or one of the replies, start a new topic and refer back with a link.