[R] Using PCNM() in Vegan and calculating Moran's I

Pascal Oettli kridox at ymail.com
Wed Dec 19 03:23:14 CET 2012


Hello,

I generally use 'moran.test' and 'moran.mc' from the 'spdep' package.

Regards,
Pascal


Le 19/12/2012 09:02, Chase, Jennifer a écrit :
> Hello-
> I am using the vegan package PCMN() because I need to use option of row
> weights (I am using CCA following the selection of the significant/positive
> PCNM variables). In the library PCNM (PCNM function), the Moran's I is
> calculated for you as part of the function. I see that I need to calculate
> Moran's I separately in order to retain the eigenfunctions with positive
> spatial correlation but could use help in doing so...I have looked up
> Moran's I in a couple different packages but am not sure what to use...
>
> Thanks!
>
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