Re: [R-sig-eco] FW: inconsistent p-values in 'indval'

2014-01-01 Thread Peter Solymos
Eda, How many permutations do you use? Have you tried setting the RNG seed via set.seed() ? Also, if you have borderline p-values that change from run to run it might indicate not so strong discrimination by the given clustering of sites. Cheers, Peter -- Péter Sólymos 780-492-8534 | soly...@

[R-sig-eco] FW: inconsistent p-values in 'indval'

2014-01-01 Thread Addicott Eda
Why do I get inconsistent p-values for indicator values of species when I run IndVal (in the labsdv package) on exactly the same dataset? I have tested this with a small dataset (40 samples and 55 species) and a larger dataset (334 samples and 545 species) and on different numbers of clusters rangi