Displaying 2 results from an estimated 2 matches for "r40398".
Did you mean:
140398
2007 Feb 21
1
Adding difftime objects to POSIXt objects
...linux-gnu
system i686, linux-gnu
status Under development (unstable)
major 2
minor 5.0
year 2007
month 01
day 07
svn rev 40398
language R
version.string R version 2.5.0 Under development (unstable) (2007-01-07
r40398)
Jeff
--
http://biostat.mc.vanderbilt.edu/JeffreyHorner
2007 Apr 03
1
Behavior of seq_along (was: Create a new var reflecting the order of subjects in existing var)
I am moving this from r-help to r-devel. Based on offline communications
with Jim, suppose dat is defined as follows:
set.seed(123)
dat <- data.frame(ID= c(rep(1,2),rep(2,3), rep(3,3), rep(4,4),
rep(5,5)), var1 =rnorm(17, 35,2), var2=runif(17,0,1))
# Then this ave call works as expected:
ave(dat$ID, dat$ID, FUN = function(x) seq_along(x))
# but this apparently identical calculation