These functions list the SAGA libraries (rsaga.get.libraries) and modules (rsaga.get.lib.modules, rsaga.get.modules) available in a SAGA installation, and allow to perform a full-text search among these functions.
multi.focal.function cuts out square or circular moving windows from a stack of grids (matrices) and applies a user-defined matrix function that takes multiple arguments to this data. multi.local.function is a more efficiently coded special case of moving windows of size 0, i.e. functions applied to individual grid cells of a stack of grids. This is especially useful for applying predict methods of statistical models to a stack of grids containing the explanatory variables (see Examples and grid.predict). The function is suitable for large grid files as it can process them row by row; but it may be slow because one call to the focal function is generated for each grid cell.
These functions provide simple interfaces for reading and writing grids from/to ASCII grids and Rd files. Grids are stored as matrices, their headers in lists.
rsaga.target
(Package: RSAGA) :
Define target grid for interpolation
Define the resolution and extent of a target grid for interpolation by SAGA modules based on (1) user-provided x/y coordinates, (2) an existing SAGA grid file, or (3) the header data of an ASCII grid. Intended to be used with RSAGA's interpolation functions.
providing 
.