The function in 'lapply' gets each component, so
write a function that does what you want given a
component of the list:
lapply(BigList, function(x) mean(x$label1))
Patrick Burns
[EMAIL PROTECTED]
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")
eric lee wrote:
Hi. I have a list where each object in the list has multiple parts. I'd
like to take the mean of just one part of each object. Is it possible to do
this with lapply? If not, can you recommend another function? Thanks.
eric
x1 <- c(0,1,2,3)
x2 <- c(7,8)
x3 <- c(2,6,6,8)
x4 <- c(4,8)
Lst1 <- list(label1 = x1,label2 = x2)
Lst2 <- list(label1 = x3, label2 = x4)
BigList <- list(Lst1, Lst2)
lapply(BigList$label1, mean)
list()
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