Re: [R] Create a new Vector based on two columns

On Wed, Apr 25, 2012 at 02:22:05PM +0200, 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! > > m <- fa

[R] Create a new Vector based on two columns

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