[R] mapple

[Phillip Heinrich]

With the snippet of data below I’m trying to do an if/then type of thing:
    row 1 – if all five variables equal 0 then code equals 1;
    row 3 – if v1 = 1 and v2 = 1 then code = 5;
    row 7 – if v1 = 0 and v2 = 1 and v3 = 2 then code = 10

There are 24 codes in the complete database.


   v1 v2 v3 v4 v5 code
1   0  0  0  0  0    1
2   1  4  0  0  0    1
3   1  1  0  0  0    1
4   1  0  1  0  0    1
5   2  0  1  0  0    1
6   0  1  0  0  0    1
7   0  1  2  0  0    1
8   0  1  2  3  0    1
9   0  2  3  4  4    1
10  0  0  0  2  3    1  I understand that the mapply function can do things like this but I have been reading documentation and poking around with Google but am getting nowhere.  Any advise whould be greatly appreciated.  
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