## Continuing with your data AA <- stringr::str_extract_all(dd[[2]],"[[:digit:]]+") BB <- lapply(AA, as.numeric) ## I think you are looking for one of the following two expressions sum(unlist(BB)) sapply(BB, sum)
On Mon, Apr 18, 2016 at 12:48 PM, Burhan ul haq <ulh...@gmail.com> wrote: > Hi, > > I request help with the following: > > INPUT: A data frame where column "Lower" is a character containing numeric > values (different count or occurrences of numeric values in each row, > mostly 2) > >> dput(dd) > structure(list(State = c("Alabama", "Alaska", "Arizona", "Arkansas", > "California"), Lower = c("R 72–33", "R/Coalition 27(23 R, 4 D)–12 D, 1 > Ind.", > "R 36–24", "R 64–35, 1 Ind.", "D 52–28"), Upper = c("R 26–8, 1 Ind.", > "R/Coalition 15(14 R, 1 D)–5 D", "R 18–12", "R 24–11", "D 26–14" > )), .Names = c("State", "Lower", "Upper"), row.names = c(NA, > 5L), class = "data.frame") > > PROBLEM: Need to extract all numeric values and sum them. There are few > exceptions like row2. But these can be ignored and will be fixed manually > > SOLUTION SO FAR: > str_extract_all(dd[[2]],"[[:digit:]]+"), returns a list of numbers as > character. I am unable to unlist it, because it mixes them all together, ... > > And if I may add, is there a "dplyr" way of doing it ... > > > Thanks > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.