[Vegan-commits] r1054 - pkg/vegan/man
noreply at r-forge.r-project.org
noreply at r-forge.r-project.org
Mon Oct 26 08:37:01 CET 2009
Author: jarioksa
Date: 2009-10-26 08:37:00 +0100 (Mon, 26 Oct 2009)
New Revision: 1054
Modified:
pkg/vegan/man/decostand.Rd
Log:
formatting
Modified: pkg/vegan/man/decostand.Rd
===================================================================
--- pkg/vegan/man/decostand.Rd 2009-10-25 07:43:48 UTC (rev 1053)
+++ pkg/vegan/man/decostand.Rd 2009-10-26 07:37:00 UTC (rev 1054)
@@ -1,3 +1,4 @@
+\encoding{UTF-8}
\name{decostand}
\alias{decostand}
\alias{wisconsin}
@@ -54,10 +55,11 @@
\item \code{hellinger}: square root of \code{method = "total"}
(Legendre & Gallagher 2001).
\item \code{log}: logarithmic transformation as suggested by Anderson
- et al. (2006): \eqn{log_b (x) + 1} for \eqn{x > 0}, where \eqn{b} is
- the base of the logarithm. Zeros are left as zeros. Higher bases give
+ et al. (2006): \eqn{\log_b (x) + 1} for \eqn{x > 0}, where \eqn{b} is
+ the base of the logarithm; zeros are left as zeros. Higher bases give
less weight to quantities and more to presences, and \code{logbase = Inf}
- gives the presence/absence scaling. Please note this is not \eqn{log(x+1)}.
+ gives the presence/absence scaling. Please note this is \emph{not}
+ \eqn{\log(x+1)}.
Anderson et al. (2006) suggested this for their (strongly) modified
Gower distance, but the standardization can be used independently
of distance indices.
@@ -85,7 +87,8 @@
\code{"decostand"} giving the name of applied standardization
\code{"method"}.
}
-\author{Jari Oksanen and Etienne Laliberte (\code{method = "log"}).}
+\author{Jari Oksanen and Etienne \enc{Laliberté}{Laliberte}
+ (\code{method = "log"}).}
\note{Common transformations can be made with standard \R functions.}
\references{
More information about the Vegan-commits
mailing list