ArcGIS Map Algebra {RPyGeo} | R Documentation |
Wrappers for the Single Output Map Algebra tool of the Spatial Analyst extension.
rpygeo.SingleOutputMapAlgebra.sa(expression.string, out.raster, in.data = NULL, ...)
in.data,
out.raster |
Names
of ArcGIS raster or vector
datasets or feature classes in a geodatabase (relative to the
current workspace defined in a rpygeo.env environment).
Shapefiles must include the extension ".shp" . |
expression.string |
Valid Map Algebra expression as described in the ArcGIS help files (link below). |
... |
Additional arguments to be passed to
rpygeo.geoprocessor . |
These functions simply interface the behaviour of the
ArcGIS/Python geoprocessing functions with the equivalent names.
See rpygeo.geoprocessor
for details on what happens behind
the scenes.
ArcGIS 9.2 online help for the georpocessing tools can be accessed through the following URLs:
The functions return NULL
if no error occurred, otherwise
a character vector containing the error message.
Alexander Brenning
rpygeo.geoprocessor
, rpygeo.build.env