Hi,
I have a problem and a rather poor solution that I would like to improve.
There a 2 datasets with different number of cases like this:
Dataset �poploc� Dataset �siruta�
Case no. SIRUTA TYPE Case no. SIRUTA TYPE
1 1017 0 1 1017 3
2 1026 0 2 1020 5
3 42711 0 3 1026 4
� �
13000 100234 0 �
16000 160241 3
I want to bring the TIP variable in the �poploc� dataset according to the
SIRUTA variable (which has unique codes for each case, in both datasests).
The resulting dataset 'poploc' should look like this:
Case no. SIRUTA TYPE
1 1017 3
2 1026 4
3 42711 3
�
13000 100234 5
My current solution involves a combination of FOR looping and indexing, which
takes about 3 minutes to complete.
for (i in 1:nrow(siruta))
poploc$TIP[poploc$SIRUTA %in% siruta$SIRUTA[i]] <- siruta$TIP[i]
I�m sure there are more clever solutions, any help appreciated. Thank you!
Adrian
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