search for: 1977505

Displaying 1 result from an estimated 1 matches for "1977505".

Did you mean: 977505
2009 Apr 06
3
how to subsample all possible combinations of n species taken 1:n at a time?
Hello I apologise for the length of this entry but please bear with me. In short: I need a way of subsampling communities from all possible communities of n taxa taken 1:n at a time without having to calculate all possible combinations (because this gives me a memory error - using combn() or expand.grid() at least). Does anyone know of a function? Or can you help me edit the combn or