Hi, I am getting this: x<-subset(fish,Year==2012 & Total==max(Total)) x # IDWeek Total Fry Smolt FryEq Year #21 47 303259 34008 269248 491733 2012 A.K.
----- Original Message ----- From: Felipe Carrillo <mazatlanmex...@yahoo.com> To: R. Michael Weylandt <michael.weyla...@gmail.com> Cc: "r-help@r-project.org" <r-help@r-project.org> Sent: Sunday, December 2, 2012 1:25 PM Subject: Re: [R] simple subset question Sorry, I was trying it to subset from a bigger dataset called 'winter' and forgot to change the variable names when I asked the question. David W suggestion works but the strange part is that I am still getting an error message with : x <- subset(fish,Year==2012 & Total==max(Total));x I get: [1] IDWeek Total Fry Smolt FryEq Year <0 rows> (or 0-length row.names) I will start a fresh session to see if that helps...Thank you all Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA http://www.fws.gov/redbluff/rbdd_jsmp.aspx From: R. Michael Weylandt <michael.weyla...@gmail.com> >To: Felipe Carrillo <mazatlanmex...@yahoo.com> >Cc: "r-help@r-project.org" <r-help@r-project.org> >Sent: Sunday, December 2, 2012 9:42 AM >Subject: Re: [R] simple subset question > >On Sun, Dec 2, 2012 at 5:21 PM, Felipe Carrillo ><mazatlanmex...@yahoo.com> wrote: >> Hi, >> Consider the small dataset below, I want to subset by two variables in >> one line but it wont work...it works though if I subset separately. I have >> to be missing something obvious that I did not realize before while using >> subset.. >> >> fish <- structure(list(IDWeek = c(27L, 28L, 29L, 30L, 31L, 32L, 33L, >> 34L, 35L, 36L, 37L, 38L, 39L, 40L, 41L, 42L, 43L, 44L, 45L, 46L, >> 47L, 48L, 49L, 50L, 51L, 52L, 27L, 28L, 29L, 30L, 31L, 32L, 33L, >> 34L, 35L, 36L, 37L, 38L, 39L, 40L, 41L, 42L, 43L, 44L, 45L, 46L, >> 47L, 48L, 49L, 50L, 51L, 52L), Total = c(0L, 0L, 326L, 1735L, >> 1807L, 2208L, 3883L, 8820L, 6060L, 19326L, 63158L, 100718L, 53015L, >> 91689L, 152629L, 122708L, 61293L, 15574L, 86538L, 75365L, 303259L, >> 19691L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 161L, 321L, 1000L, 4425L, >> 13202L, 19726L, 30518L, 84949L, 157260L, 145691L, 85801L, 62044L, >> 44439L, 23272L, 22391L, 20159L, 14854L, 35379L, 31142L, 7736L, >> 13221L, 4894L), Fry = c(0L, 0L, 326L, 1735L, 1807L, 2208L, 3883L, >> 8759L, 6060L, 19326L, 63119L, 100524L, 52582L, 88170L, 145564L, >> 111416L, 38233L, 5248L, 17826L, 11038L, 34008L, 215L, 0L, 0L, >> 0L, 0L, 0L, 0L, 0L, 0L, 161L, 321L, 1000L, 4425L, 13055L, 19488L, >> 30518L, 84818L, 156909L, 144786L, 84207L, 57720L, 31049L, 6858L, >> 1616L, 719L, 364L, 49L, 0L, 0L, 0L, 0L), Smolt = c(0L, 0L, 0L, >> 0L, 0L, 0L, 0L, 62L, 0L, 0L, 38L, 195L, 433L, 3518L, 7067L, 11290L, >> 23058L, 10327L, 68712L, 64328L, 269248L, 19479L, 0L, 0L, 0L, >> 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 147L, 238L, 0L, 131L, 351L, >> 905L, 1592L, 4324L, 13391L, 16414L, 20774L, 19444L, 14491L, 35330L, >> 31142L, 7736L, 13221L, 4894L), FryEq = c(0L, 0L, 326L, 1735L, >> 1807L, 2208L, 3883L, 8864L, 6060L, 19326L, 63185L, 100854L, 53318L, >> 94151L, 157576L, 130610L, 77432L, 22805L, 134639L, 120393L, 491733L, >> 33327L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 0L, 161L, 321L, 1000L, 4425L, >> 13306L, 19894L, 30518L, 85042L, 157506L, 146328L, 86914L, 65073L, >> 53812L, 34763L, 36931L, 33769L, 24998L, 60110L, 52938L, 13149L, >> 22476L, 8319L), Year = c(2012L, 2012L, 2012L, 2012L, 2012L, 2012L, >> 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, >> 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, 2012L, >> 2012L, 2012L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, >> 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, >> 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, 2011L, >> 2011L)), .Names = c("IDWeek", "Total", "Fry", "Smolt", "FryEq", >> "Year"), row.names = c(NA, 52L), class = "data.frame") >> fish >> # Subset to get the max Total for 2012 >> x <- subset(winter,Year==2012 & Total==max(Total));b # How come one line >>doesn't work? > >Works fine for me if I change "winter" to fish here. > >subset(fish,Year==2012 & Total==max(Total)) > IDWeek Total Fry Smolt FryEq Year >21 47 303259 34008 269248 491733 2012 > >> >> # It works if I subset the year first and then get the Total max from it >> xx <- subset(winter,Year==2012) >> xxx <- subset(xx,Total==max(Total));xxx >> xxx >> >> Felipe D. Carrillo >> Supervisory Fishery Biologist >> Department of the Interior >> US Fish & Wildlife Service >> California, USA >> http://www.fws.gov/redbluff/rbdd_jsmp.aspx >> >> [[alternative HTML version deleted]] >> >> >> ______________________________________________ >> 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. >> > > > [[alternative HTML version deleted]] ______________________________________________ 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. ______________________________________________ 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.
