search for: cathegories

Hello I have a data set summarized like this: File name= Height Group Ind Age Trait 1 1 1 20 1 1 2 21 1 2 1 22 1 2 2 21 1 3 1 24 1 3 2 45 1 4 1 23 1 4 2 26 2 1 1 45 2 1 2 12 2 2 1 25 2 2 2 26 2 3 1 45 2 3 2 43 2 4 1 23 2 4 2 47 . . . I would like to plot Trait ~ Age but a different plot for each Group. I tried: > plot(Height$Trait ~ Height$Age | Group) But does not work. Any

Dear R users, apologies for this quite simple question. I've tried serverall approaches, however, could not generate the desired result. I have a large data frame, which has several cathegories encoded as character strings, for example. Name, income, gender, ... ... "from 1000$ to 2000$" ... ... "from 2000$ to 3000$" ... ... "more than 3000$" ... ... "from 1000$ to 2000$" ... ... "from 1000$ to 2000$" ... How can I tran...

Dear list members, I have a series of /unequal/ probabilities [p1,p2,...,pk], describing mutually exclusive events, and a "remainder" class with a probability p0=1-p1-p2-....-pk, and need to calculate, for a given number of trials t>=k, the combined probability that each of the classes 1...k contains at least 1 "event" (the remainder class may be empty). To me this reaks