Subsetting from a dataframe with only one variable returns a vector, not a dataframe. This seems somewhat inconsistent. Wouldn't it be better if subsetting would respect the structure completely?
v1<-1:4 v2<-4:1 df1<-data.frame(v1) df2<-data.frame(v1,v2) sel1<-c(TRUE,TRUE,TRUE,TRUE) > df1[sel1,] [1] 1 2 3 4 > df2[sel1,] v1 v2 1 1 4 2 2 3 3 3 2 4 4 1 -- Erich Neuwirth Institute for Scientific Computing and Didactic Center for Computer Science University of Vienna phone: +43-1-4277-39464 fax: +43-1-4277-39459 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
