[Vegan-commits] r754 - branches/1.15/man

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

Author: jarioksa
Date: 2009-03-23 12:04:15 +0100 (Mon, 23 Mar 2009)
New Revision: 754

Modified:
   branches/1.15/man/envfit.Rd
Log:
merged r753: warning on automatic scaling of arrows in plot.envfit

Modified: branches/1.15/man/envfit.Rd
===================================================================
--- branches/1.15/man/envfit.Rd	2009-03-22 17:13:47 UTC (rev 753)
+++ branches/1.15/man/envfit.Rd	2009-03-23 11:04:15 UTC (rev 754)
@@ -105,6 +105,12 @@
   similarity between fitted vectors and biplot arrows, you should set
   \code{display = "lc"} (and possibly \code{scaling = 2}).
 
+  The lengths of arrows for fitted vectors are automatically adjusted
+  for the physical size of the plot, and the arrow lengths cannot be
+  compared across plots. For similar scaling of arrows, you must
+  explicitly set the \code{arrow.mul} argument in the \code{plot}
+  command.
+
   The results can be accessed with \code{scores.envfit} function which
   returns either the fitted vectors scaled by correlation coefficient or
   the centroids of the fitted environmental variables.