Displaying 1 result from an estimated 1 matches for "tp3528084p3528299".
2011 May 17
1
Zero counts in an aggregate function
Dear R-users,
I've searched for an answer to my question, but so far haven't been able to
find a solution. Its likely a simple issue, but have no idea how to do this.
A simplified version my (very large) data set looks like this:
>
> bugs
FRUIT SEED_ID SURVIVE
1 1 A 1
2 1 B 1
3 1 C 1
4 1 D 0
5 1 E