You have a two-dimensional data frame. Columns is easy, say col4 <- col3 - col2 How do you do row3 <- row2 +1 for example. -- View this message in context: http://www.nabble.com/How-do-you-refer-to-the-row-above-in-a-data-frame---tp15336933p15336933.html Sent from the R help mailing list archive at Nabble.com.
Henrique Dallazuanna
2008-Feb-07 16:20 UTC
[R] How do you refer to the row above in a data frame ?
If I understand: data[nrow(data)+1,] <- data[nrow(data),] + 1 On 07/02/2008, ppaarrkk <simon_ecc at yahoo.co.uk> wrote:> > You have a two-dimensional data frame. > > Columns is easy, say > > col4 <- col3 - col2 > > How do you do > > row3 <- row2 +1 > > for example. > -- > View this message in context: http://www.nabble.com/How-do-you-refer-to-the-row-above-in-a-data-frame---tp15336933p15336933.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help at 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. >-- Henrique Dallazuanna Curitiba-Paran?-Brasil 25? 25' 40" S 49? 16' 22" O