beierm at uni-duesseldorf.de
2007-Jun-13 12:14 UTC
[Rd] subset() only returns first of equally named columns from a data.frame (PR#9733)
Full_Name: Manfred Beier Version: 2.5.0 (2007-04-23) OS: linux-gnu Submission from: (NULL) (134.99.204.101) When multiple columns in a data.frame have the same name, only the first of them is returned by the subset() function even when selected numerically.> test <- data.frame(cbind(1,2,3)) > names(test) <- c("a","a","a") > testa a a 1 1 2 3> subset(test, TRUE, c(2,3))a a.1 1 1 1 For matrices subset() works correctly.