In the help page of ?tapply it says that the first argument (X) is "an
atomic object, typically a vector."
However, tapply seems to be able to handle list objects. For example:
###################
l <- as.list(1:10)
is.atomic(l) # FALSE
index <- c(rep(1,5),rep(2,5))
tapply(l,index,unlist)
> tapply(l,index,unlist)
$`1`
[1] 1 2 3 4 5
$`2`
[1] 6 7 8 9 10
###################
Hence, does it mean a list an atomic object? (which I thought it wasn't) or
is the help for tapply needs updating?
(or some third option I'm missing?)
Thanks.
----------------Contact
Details:-------------------------------------------------------
Contact me: tal.gal...@gmail.com |
Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
www.r-statistics.com (English)
----------------------------------------------------------------------------------------------
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
