i have a data frame and a numeric vector indexed as a subset of the rows in the data.frame. what command can i use to assign the values in the vector to the appropriate rows of the data.frame? here's my failed attempt. what i would want is data[1,'z'] == 2, data[5,'z'] == -4, data[8,'z'] == -5, data[9,'z'] == 5, and for the other values of 'z' to remain 0.
> data x y z 1 -6 4 0 2 -3 19 0 3 15 40 0 4 0 17 0 5 1 12 0 6 17 45 0 7 4 19 0 8 -13 -16 0 9 -7 5 0 10 -5 22 0 > vec 1 5 8 9 2 -4 -5 5 > data['z']=vec Error in `[<-.data.frame`(`*tmp*`, "z", value = c(2, -4, -5, 5)) : replacement has 4 rows, data has 10 > thanks, Rnewb -- View this message in context: http://n4.nabble.com/updating-subset-of-data-frame-tp931051p931051.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list 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.