... and here is a non-dplyr rsolution: > z <-gsub("[^[:digit:]]"," ",dd$Lower)
> sapply(strsplit(z," +"),function(x)sum(as.numeric(x),na.rm=TRUE)) [1] 105 67 60 100 80 Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Mon, Apr 18, 2016 at 10:07 AM, Richard M. Heiberger <r...@temple.edu> wrote: > ## 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. ______________________________________________ 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.