Message-ID: <CAO-arWNPrJKipzZWcnVF5sea3LxMJK8ywXDxXNRdck3F0vh_5Q@mail.gmail.com>
Date: 2012-02-18T01:51:01Z
From: Benilton Carvalho
Subject: assigning NULL to a list element
Hi everyone,
For reasons beyond the scope of this message, I'd like to append a
NULL element to the end of a list.
tmp0 <- list(a=1, b=NULL, c=3)
append(tmp0, c(d=4)) ## works as expected
append(tmp0, c(d=NULL)) ## list with a/b/c only
Given that I could use
tmp0$a <- NULL
to remove 'a', I seem to understand why appending NULL returns me the
original list... But how should I proceed to actually have d=NULL
(just like I have 'b' in tmp0 above)?
Thank you very much,
benilton