Hi.
I have a big data set which could be represented something like this:
*plot fate*
1 S
2 M
3 S
3 S
3 M
4 S
4 S
5 S
5 M
5 S
5 S
6 M
7 M
where plot is a location, and fate is either "survivorship" or "mortality"
( a plant lives or dies.) Thus in plot 5 there are 4 plants. 3 of them
survive, 1 dies.
I want to figure out a way to make R calculate the fraction of individuals
that survive in each plot for all of these. It is proving very challenging.
Example: Plot 5 would return a survivorship value of 3/4 or 75%/
Plot 3 would return a survivorship value of 2/3 or 66%
Any help would be much appreciated.
Thank you
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