Ajay Narottam Shah <ajayshah <at> mayin.org> writes: > > I have a data frame with one column "x": > > > str(data) > `data.frame': 20 obs. of 1 variable: > $ x: num 0.0495 0.0986 0.9662 0.7501 0.8621 ... .... > Here, it looks like the operation > data[1:10,] > has converted it from type data frame into a numeric vector. Why does > this happen, and what can I do about it?
Check parameter "drop" in the documentation of "[" or Extract. The simplification to a vector is default behavior for historical reasons, but somewhat confusing. Dieter ______________________________________________ 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
