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.
Cheers,
Simon.
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
Australia
T: +61 7 3365 2506
email: S.Blomberg1_at_uq.edu.au
http://www.evolutionarystatistics.org
Policies:
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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