Re: [R-sig-eco] repeated measures NMDS?

2010-11-11 Thread Kay Cecil Cichini
gavin, sorry - of course it should be permute.strata=F, permuting within individual sites! but despite of this the code should work, doesn't it? thanks, kay Gavin Simpson schrieb: On Wed, 2010-11-10 at 23:33 +0100, Kay Cecil Cichini wrote: hi eduard, i faced similar problems recently

Re: [R-sig-eco] repeated measures NMDS?

2010-11-11 Thread Kay Cecil Cichini
thanks a lot for the illustrative example. ..referring to your quote: ...This of course doesn't account for any temporal correlation within sites nor, if the observations on the 24 blocks were made at the same times, that you might want to have the same permutation within each block. In the

Re: [R-sig-eco] repeated measures NMDS?

2010-11-11 Thread Gavin Simpson
On Thu, 2010-11-11 at 13:03 +0100, Kay Cecil Cichini wrote: thanks a lot for the illustrative example. ..referring to your quote: ...This of course doesn't account for any temporal correlation within sites nor, if the observations on the 24 blocks were made at the same times, that you

[R-sig-eco] Fit log-series to species-rank abundance

2010-11-11 Thread Guillem Chust
Hello, Does anybody know how to estimate abundances of the i-th ranked species under the Fisher's log-series model? In vegan package, the radfit function perform this but for other models (log-normal, ...). Also in vegan, the fisherfit function estimates the model parameters, however I

Re: [R-sig-eco] ANOSIM in vegan

2010-11-11 Thread Jari Oksanen
On 12/11/10 02:23 AM, Soumi Ray soumira...@gmail.com wrote: Hi, I have a dataset consisting of species collected from the same location during 2 time periods - i want to see if the community composition is similar during the two time periods. My entire dataset is presence/absence (0/1)