Hi, Mat, e. g., try something like
ORDER$VALUE * c( NY = 3, BER = 2, FRA = 1, WAS = 4)[ ORDER$DESTINY] Hth -- Gerrit On Fri, 17 Jan 2014, Mat wrote:
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.
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