Dear All-
I am trying to merge two data files - they have different date formats
and different times zones. I need to match up the date/time of the
datasets and then invoke a conditional statement, such as: if dataC$mph
is = 12 then keep dataM$co23 for the corresponding time/date stamp.
There seems to be no reason to use POSIXct in the first place.
Just use chron everywhere and read R News 4/1.
Suppose we just want month 9 from the merged object:
z2 - zoo(data.matrix(DF), tt)
m - merge(z, z2, all = c(FALSE, TRUE))
m[ m$mon %in% 9 ]
On Sat, Jan 3, 2009 at 7:57 PM, Sherri Heck
2 matches
Mail list logo
