Selecting first 7 elements
Sorry I made a mistake in my code, lapply(x, "[", 8:14) works fine now. Thanks. On May 30, 10:55?pm, Jorge Ivan Velez <jorgeivanve... at gmail.com> wrote:
HiKang, Try either lapply(x, "[", 8:14) ? # Erik Iverson's method or lapply(x, function(x) x[8:14]) HTH, Jorge On Sun, May 30, 2010 at 9:44 AM,KangMin<> wrote:
Hmm x[8:14] didn't work. Yes Iverson's method worked, I wanted the whole list, with 7 elements in each vector.
Now I want the whole list as well, but with the 8th to 14th element.
On May 30, 7:47 pm, David Winsemius <dwinsem... at comcast.net> wrote:
On May 29, 2010, at 11:37 PM,KangMinwrote:
What if I want to select the 8th to 14th element of the list? I tried to use "[" again, but it doesn't work.
x[8:14]
(And I could not get Iverson's earlier method to work properly on a long list. It just returned the whole list. Did it work properly for you? )
-- David.
"[" is a function, and you want to use it on each element of the list, so...
lapply(x, "[", c(1:7))
and the call to c() is of course not necessary, since ":" will generate a vector.
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