gdalraster

Interface to the raster API of the 'Geospatial Data Abstraction Library' ('GDAL') supporting manual creation of uninitialized datasets, creation from existing raster as template, low level I/O, configuration of virtual raster (VRT), coordinate transformation, and access to 'gdalwarp' for reprojection. Convenience functions facilitate working with spatial reference systems. Calling signatures resemble the native C, C++ and Python APIs provided by the 'GDAL' project (). Bindings to 'GDAL' are implemented in class 'GDALRaster' along with several stand-alone functions. Additional functionality includes: class 'RunningStats' for efficient summary statistics on large data streams; class 'CmbTable' for counting unique combinations of integer values with a hash table; a raster overlay utility to identify and count unique combinations across multiple inputs; and a calculation utility for evaluating an R expression on raster layers with pixel coordinates available as variables. 'gdalraster' may be suitable for applications that primarily need low-level raster I/O, explicit manipulation of VRT format, or prefer native 'GDAL'-like calling. Additional functionality is somewhat aimed at thematic data analysis but may have other utility.