An implementation of the constrained quadratic regression algorithm using a flexible window size described in Wood (1996).
wbt_local_quadratic_regression(
dem,
output,
filter = 3,
wd = NULL,
verbose_mode = NULL,
compress_rasters = NULL,
command_only = FALSE
)Returns the tool text outputs.
Name of the input DEM raster file.
Name of the output raster file.
Edge length of the filter kernel.
Changes the working directory. Default: NULL will use the value in WhiteboxTools settings, see wbt_wd() for details.
Sets verbose mode. If verbose mode is FALSE, tools will not print output messages. Default: NULL will use the value in WhiteboxTools settings, see wbt_verbose() for details.
Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters. Default: NULL will use the value in WhiteboxTools settings, see wbt_compress_rasters() for details.
Return command that would be executed by system() rather than running tool. Default: FALSE.