[Vegan-commits] r2021 - pkg/vegan/man

[noreply at r-forge.r-project.org]

Author: jarioksa
Date: 2011-12-15 12:31:21 +0100 (Thu, 15 Dec 2011)
New Revision: 2021

Modified:
   pkg/vegan/man/nestedtemp.Rd
Log:
more explanation on Baselga's multiple-site similarities as null model statistics

Modified: pkg/vegan/man/nestedtemp.Rd
===================================================================
--- pkg/vegan/man/nestedtemp.Rd	2011-12-12 08:55:35 UTC (rev 2020)
+++ pkg/vegan/man/nestedtemp.Rd	2011-12-15 11:31:21 UTC (rev 2021)
@@ -122,7 +122,13 @@
   the Jaccard index. The functions return a vector of three items:
   turnover, nestedness and their sum which is the multiple
   \enc{Sørensen}{Sorensen} or Jaccard dissimilarity. The last one is
-  the total beta diversity (Baselga 2010).
+  the total beta diversity (Baselga 2010). The functions will treat
+  data as presence/absence (binary) and they can be used with binary
+  null models (see \code{\link{commsimulator}}). The overall
+  dissimilarity is constant in all null models that fix species
+  (column) frequencies (\code{"c0"}), and all components are constant
+  if row columns are also fixed (e.g., model \code{"quasiswap"}), and
+  the functions are not meaningful with these null models.
 
 }