> x <- " x + 1 2 + 2 4 + 3 1 + 4 3 + 5 3 + 6 2 + " > x <- read.table(textConnection(x), header=TRUE) > data.frame(sum=tapply(x$x, rep(1:(nrow(x) / 2), each=2), sum)) sum 1 6 2 4 3 5
On 7/14/06, Sachin J <[EMAIL PROTECTED]> wrote: > > Hi, > > How can I achieve this in R. Dataset is as follows: > > >df > x > 1 2 > 2 4 > 3 1 > 4 3 > 5 3 > 6 2 > > structure(list(x = c(2, 4, 1, 3, 3, 2)), .Names = "x", row.names = c("1", > "2", "3", "4", "5", "6"), class = "data.frame") > > I want to recreate a new data frame whose rows are sum of (1&2, 3&4, 5&6) > of original df. For example > > >newdf > x > 1 6 > 2 4 > 3 5 > > Thanx in advance for the help. > > Sachin > > > > --------------------------------- > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > -- Jim Holtman Cincinnati, OH +1 513 646 9390 (Cell) +1 513 247 0281 (Home) What is the problem you are trying to solve? [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html