[Raster-commits] r137 - in pkg/raster: R man

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

Author: rhijmans
Date: 2009-01-15 07:23:11 +0100 (Thu, 15 Jan 2009)
New Revision: 137

Modified:
   pkg/raster/R/group.generic.functions.R
   pkg/raster/man/Arith-methods.Rd
   pkg/raster/man/Logic-methods.Rd
Log:


Modified: pkg/raster/R/group.generic.functions.R
===================================================================
--- pkg/raster/R/group.generic.functions.R	2009-01-14 23:54:19 UTC (rev 136)
+++ pkg/raster/R/group.generic.functions.R	2009-01-15 06:23:11 UTC (rev 137)
@@ -206,4 +206,21 @@
 	}
 )	
 
+setMethod("is.nan", signature(x='RasterLayer'),
+	function(x) {
+		return(setRaster(x, values=is.nan(.getRasterValues(x))))
+	}
+)	
 
+setMethod("is.infinite", signature(x='RasterLayer'),
+	function(x) {
+		return(setRaster(x, values=is.infinite(.getRasterValues(x))))
+	}
+)	
+
+setMethod("is.finite", signature(x='RasterLayer'),
+	function(x) {
+		return(setRaster(x, values=is.finite(.getRasterValues(x))))
+	}
+)	
+

Modified: pkg/raster/man/Arith-methods.Rd
===================================================================
--- pkg/raster/man/Arith-methods.Rd	2009-01-14 23:54:19 UTC (rev 136)
+++ pkg/raster/man/Arith-methods.Rd	2009-01-15 06:23:11 UTC (rev 137)
@@ -6,7 +6,7 @@
 \alias{Arith,RasterLayer,RasterLayer-method}
 \title{Methods for arithmic function for RasterLayer objects}
 \description{
-  The following standard arithmic functions can be used for computations with RasterLayers objects and numeric values: +, -, *, ^, /
+  Standard arithmic functions for computations with RasterLayer objects and numeric values
 }
 \section{Note}{
  The RasterLayer objects must have either all data in memory or on disk. If the data do not fit into memory you should use the Overlay() function instead.
@@ -14,10 +14,10 @@
 \author{Robert J. Hijmans \email{r.hijmans at gmail.com}}
 
 \examples{
-r1 <- newRaster()
+r1 <- newRaster(ncols=10, nrows=10)
 r1 <- setValues(r1, runif(ncells(r1)))
 r2 <- setValues(r1, 1:ncells(r1)) / ncells(r1)
-r3 <- r1 * r2 - 1
+r3 <- r1 * (r2 - 1 + r1^2 / r2)
 }
 
 \keyword{methods}

Modified: pkg/raster/man/Logic-methods.Rd
===================================================================
--- pkg/raster/man/Logic-methods.Rd	2009-01-14 23:54:19 UTC (rev 136)
+++ pkg/raster/man/Logic-methods.Rd	2009-01-15 06:23:11 UTC (rev 137)
@@ -3,11 +3,18 @@
 \alias{Logic-methods}
 \alias{Logic,RasterLayer,RasterLayer-method}
 \alias{is.na,RasterLayer-method}
+\alias{is.nan,RasterLayer-method}
+\alias{is.finite,RasterLayer-method}
+\alias{is.infinite,RasterLayer-method}
 
 \title{ Methods for logical functions for RasterLayers' }
 \description{
 	The following boolean operators are available: '&', '|'
-	is.na(object) can also be called. 
+	These are also available (with object being a RasterLayer, and the result a RasterLayer with logical values:
+	is.na(object) 
+	is.nan(object)
+	is.finite(object)
+	is.infinite(object)
 }
 
 \keyword{methods}