Hello together, i have a little problem, to create a new column, in a data.frame. I know i can calculate one column with as a example 2 like this: ORDER$WEIGHT <- ORDER$VALUE * 2
But how can i create the ORDER$WEIGHT with different numbers, like this one. I have a data.frame like this one: ORDER DESTINY VALUE A NY 100 B BER 10 C FRA 100 D WAS 50 I want now the column ORDER$WEIGHT in dependence of "DESTINY". NY should be *3, BER *2, FRA*1 and WAS * 4. The solution look like this one: ORDER DESTINY VALUE WEIGHT A NY 100 300 B BER 10 20 C FRA 100 100 D WAS 50 200 Maybe anyone can help me, how i can do this? Thank you. -- View this message in context: http://r.789695.n4.nabble.com/calculate-an-value-in-dependence-of-another-column-tp4683727.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
