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1000,7
2007 Dec 03
2
Why is the program too slow?
...ulates Fisher's alpha from counts of individuals and species. The program is wrote by Prof. Kyle Harm.
However, when I run the program, it can work very quickly sometimes, but it can not work very well sometimes. It depends on the counts of individuals and species.
For example,
> calc.alpha(1000,70)
[1] 17.14375
> calc.alpha(10000,70)
[1] 10.15460
> calc.alpha(100,7)
[1] 1.714375
But,
> calc.alpha(1580,30)
> calc.alpha(1000,7)
It is very slow.
So, what is the problem?
Thanks very much.
Jian Zhang
# The following functio...