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 - data.frame( a=
On Wed, Apr 25, 2012 at 6:14 AM, Patrick Hausmann
patrick.hausm...@covimo.de 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
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