Hi, On Tue, Oct 5, 2010 at 3:52 AM, Trying To learn again <tryingtolearnag...@gmail.com> wrote: > > Hi all, > > Reading more I have find a partial solution on a part of the proble in some > part of the code it should appea something like: > > # NC: All the potential combinations 3^15 > > if > > NC[price(i,j)=="1" & price(i,j)=="2"]----> extract this column > then save all the columns that contain this pre-requisite.
That's an empty set, so it's really easy to extract. Try something like NC[,(NC[3,]=="1")] Note the commas, which control whether you are selecting rows or columns. I recommend reading "An Introduction to R": http://cran.r-project.org/doc/manuals/R-intro.pdf Jonathan > > 2010/10/4 Trying To learn again <tryingtolearnag...@gmail.com> > > > Hi all, > > > > I´ve been ill and I have lost a lot of time without seen the pc. > > > > I want you to help if you can if you want. > > > > Only I need an initial guide. I´ve been out a lot of time and I need a > > hope. Is only for "joby" purposes. > > > > The problem: > > > > I want to simulate each of the posible combination in a play. Imagine they > > play to games (football games) and you can choose "1", "X", "2" you must > > choose this 15 times. > > > > So finally you will get a colum 15x1 si you have (3^15) posible colums. > > > > I want to extract all the columns were in the row 3 you can find an "2". Or > > in the row 3 appears a "1" and row 3 "x". > > > > And extract them and save in a txt document. > > > > Sorry I know that I only ask but actually I feel very fool. > > > > If you give an initial guide will be sufficient. > > > > Many thanks for all in advace. > > > > > > [[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.