Simon Blomberg s.blomberg1 at uq.edu.au
Mon May 6 05:24:02 CEST 2013

This is a PRIMER question, not an R question. Please take it up with the 
PRIMER support people. R-helpers cannot be expected to know how other, 
closed-source, software works.



On 06/05/13 12:34, Gilson Carvalho wrote:
> Dear all,
> Does anyone knows why the results of a BIOENV (PRIMER v. 6.1.15) are
> diferent of the bioenv() + mantel() in vegan? Not the spearman correlation,
> indeed the pseudo-p value.
> I know that the approach bioenv() + mantel() is biased. So, how the BIOENV
> (PRIMER) ends with larger p values (permutated).
> Acctualy how the permutation test in BIOENV (PRIMER) is conducted. The user
> guide does not make it clear.
> Best Wishes,

Simon Blomberg, BSc (Hons), PhD, MAppStat, AStat.
Lecturer and Consultant Statistician
School of Biological Sciences
The University of Queensland
St. Lucia Queensland 4072
T: +61 7 3365 2506
email: S.Blomberg1_at_uq.edu.au

1.  I will NOT analyse your data for you.
2.  Your deadline is your problem.

Statistics is the grammar of science - Karl Pearson.

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