> > [R] Newbie question: Converting Table > > Hi, > > I'm new to R, and I have searched helpfiles and this forum on my 2 > questions. Hope you guys can help me out! :-)
You did not search enough. You probably want table or xtabs Q1 untested res <- xtabs(~subject+class, data=your.file) ifelse(res==1, "yes", "no") Q2 I do not understand what exactly do you want. Please be more specific. BTW, if you are in it you'd rather give a look to posting guide. Regards Petr > > Many thanks in advance! > > Cheers, > > > Lars > > Q1: I imported a csv file with columnames subject and class. There are about > 1000 different classes... > It looks like this: > subject1, class1 > subject1, class2 > subject2, class1 > subject2, class3 > ... > subject999, class1 > subject999, class2 > > Now I want to transform this in R into a table (with columnnames > subject,class1,class2,...) like: > subject1, yes, yes, no, ... > subject2, yes, no, yes, ... > ... > > Q2: I want to count the matching class patterns in the previous table > (output: in a table with columns count, class1, ...). In this example for > only the subjects1,2 and 999 it looks like this: > 2,yes,yes,no,.. > 1,yes,no,yes > ... > > > > -- > View this message in context: http://r.789695.n4.nabble.com/Newbie- > question-Converting-Table-tp3836468p3836468.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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.