Re: [R] subset rows in two dataframes

Not exactly. I need something to subset ONLY rows common to both dataframes. In the provided example, dat1 and dat2 have no common rows so I would expect: [1] v1 v2 <0 rows> (or 0-length row.names) But I can´t do it... On Sun, 11 May 2008 10:07:25 -0400, "Zhuanshi He" <[EMAIL PROTECTED]> said:

Re: [R] subset rows in two dataframes

Dear list: I can now reproduce with a bit of my real data, the problem I asked for your help yestarday: time1<- as.Date(c("2006-01-03", "2006-05-03", "2006-05-04", "2006-05-11", "2006-05-12", "2006-05-16", "2006-05-19", "2006-05-26", "2006-09-15", "2006-10-30", "2006-11-08", "2006-11-14", "2006-1

Re: [R] subset rows in two dataframes

Thanks for your reply. In fact I dont get none error message, I just simply found that some rows do not match in both dataframes. I thought it was some evident problem with my code, but it seems it is not. I'll try to check and if I can, I'll post a reproducible example. Justin On Sat, 10 May

[R] subset rows in two dataframes

Dear list: I have two dataframes, say dat1 and dat2. Each has several variables but 3 of each are common in both, (say v1, v2 and v3). v1 and v2 are factores while v3 is numeric. Now, I need a subset to extract the rows in which v1, v2 and v3 are the same in both dataframes. I tried: subset(dat1,

[R] split and subset

Dear list: I ask for your help in a simple problem in which I'm not figuring out the solution My data looks like: dat<- data.frame(date=c("12/12/1980", "03/11/1994", "15/11/1999", "31/10/2000", "20/03/2007", "05/01/2001"), var1=c("A", "A", "B", "D", "C", "A"), var2=runif(6)) I was wondering if

Re: [R] help with subset

Thank you Christos and Jim: That is precisely what I was after. On Sat, 3 May 2008 00:01:58 -0400, "Christos Hatzis" <[EMAIL PROTECTED]> said: > Try %in% > > subset(dat, treatment %in% vec) > > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf

[R] help with subset

Dear list: I have a problem using the subset function: dat<- data.frame(treatment=c("A", "B", "A", "C", "C", "D", "A", "D", "C", "D"), response=rnorm(10)) I am interested in treatments "A", "B" and "D" vec<- c("A", "B", "D") But I can only obtain what I want with: subset(dat, treatment=="A" | t