Hi > Now confused by "Choices"! :) What is my error please?
Your main error is that you do not read help which was offered by Wiliam. Choices is not a function it is name of a variable. You can call it e.g. ctsanddogs if you wish. see in line > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of r...@openmailbox.org > Sent: Tuesday, September 09, 2014 12:53 PM > To: William Dunlap > Cc: r-help@r-project.org > Subject: Re: [R] sequential input script dataframe process > functionality > > On 2014-09-08 15:47, William Dunlap wrote: > > d <- data.frame(Choices=c("One","Two","One","Three"), X=1:4) > > i <- 1 # possible output of menu(unique(d$Choices)) > > d[ d$Choices[i] == d$Choices, ] > > # Choices X > > #1 One 1 > > #3 One 3 > > > > > testd <- data.frame(Choices=c("One","Two","One","Three"), X=1:4) > > testi <- 1 # possible output of menu(unique(d$Choices)) > > testd[ testd$Choices[testi] == testd$Choices, ] > Choices X > 1 One 1 > 3 One 3 > > This instruction did not give any opportunity to enter a choice? Then > tried: Why do you think so? Did you try it? Follow Wiliam's advice d <- data.frame(Choices=c("One","Two","One","Three"), X=1:4) i <- menu(unique(d$Choices)) now i is set to some value according your choice d[ d$Choices[i] == d$Choices, ] selects items which correspond to chosen value. BTW, did you read R-intro? If not, why not? Regards Petr > > ?Choices > No documentation for 'Choices' in specified packages and libraries: > you could try '??Choices' > > ??Choices > Help files with alias or concept or title matching ‘Choices’ using > fuzzy matching: > > > mgcv::choose.k Basis dimension choice for smooths > mvtnorm::GenzBretz Choice of Algorithm and Hyper Parameters > > > Type '?PKG::FOO' to inspect entry 'PKG::FOO TITLE'. > > Then I tried to use with my test data: > > testdataextract1<- > data.frame(menu(c(unique(levels(testdata[,1]))),graphics=FALSE,title='S > elect > something')) > selectionresult<-2 > testdata[testdata$menu[selectionresult]==testdata$menu,] > > testdataextract1<- > data.frame(menu(c(unique(levels(testdata[,1]))),graphics=FALSE,title='S > elect > > something')) > Select something > > 1: text test1 > 2: text test2 > 3: text test3 > > Selection: selectionresult<-2 > Enter an item from the menu, or 0 to exit > Selection: testdata[testdata$menu[selectionresult]==testdata$menu,] > Enter an item from the menu, or 0 to exit > Selection: 0 > > Now confused by "Choices"! :) What is my error please? > > ______________________________________________ > 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. ________________________________ Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou určeny pouze jeho adresátům. 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