Re: [R] Create new Vector based on two colums

2012-04-25 Thread ilai
On Wed, Apr 25, 2012 at 6:14 AM, Patrick Hausmann wrote: > Hello, > > I am trying to get a new vector 'x1' based on the not NA-values in column > 'a' and 'b'. I found a way but I am sure this is not the best solution. So > any ideas on how to "optimize" this would be great! If by optimize you mea

[R] Create new Vector based on two colums

2012-04-25 Thread Patrick Hausmann
Hello, I am trying to get a new vector 'x1' based on the not NA-values in column 'a' and 'b'. I found a way but I am sure this is not the best solution. So any ideas on how to "optimize" this would be great! m <- factor(c("a1", "a1", "a2", "b1", "b2", "b3", "d1", "d1"), ordered = TRUE) df