[Vegan-commits] r1443 - branches/1.17/inst

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

Author: jarioksa
Date: 2011-01-09 15:18:32 +0100 (Sun, 09 Jan 2011)
New Revision: 1443

Modified:
   branches/1.17/inst/NEWS
Log:
NEWS about release 1.17-6

Modified: branches/1.17/inst/NEWS
===================================================================
--- branches/1.17/inst/NEWS	2011-01-08 07:54:53 UTC (rev 1442)
+++ branches/1.17/inst/NEWS	2011-01-09 14:18:32 UTC (rev 1443)
@@ -3,6 +3,28 @@
 			VEGAN RELEASE VERSIONS 
 		       	======================
 
+		       CHANGES IN VEGAN 1.17-6
+
+    - capscale: vegan 1.17-5 defined total inertia as the sum of
+      absolute values of eigenvalues which changed the total inertia
+      from previous versions. This is now redesigned so that total
+      inertia is the sum of all eigenvalues, i.e., negative
+      eigenvalues are subtracted from the total which was the
+      definition in 1.17-4 and earlier. The proportions of inertia
+      components are now expressed for non-negative eigenvalues only,
+      and a new item "Real Total" (sum of positive eigenvalues) is
+      added to the output if there are negative eigenvalues
+      ("Imaginary" component).
+
+    - CCorA: scaling of object scores changed: they are no longer
+      divided with (n-1). Minor fixes for improved robustness.
+
+    - metaMDS: automatically changes some arguments to non-default
+      values if input data contains negative entries. Help page gives
+      advice to do so for non-community data.
+
+    - wascores: checks that input weights are non-negative.
+
 	      NEW FEATURES AND BUG FIXES IN VEGAN 1.17-5				   		    	    
     - anova.cca: Empty models with no constrained component have
       correct degrees of freedom. Tests 'by = "axis"' are really
@@ -1005,9 +1027,6 @@
 
     - Added these NEWS.
 
-
-
-
 			 OLDER VEGAN VERSIONS
 
 Version 1.8-8 (Oct 2, 2007)