SAGA-GIS Tool Library Documentation (v7.8.2)

Tool Rao's Q Diversity Index (Classic)

Grid based analysis of diversity with Rao's Q Index. Rao's Q diversity index is calculated locally for each grid cell using the specified kernel (aka 'moving window'). It is assumed that the grid cell values represent quantities.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputValuesGrid, inputVALUES--
OutputNumber of Categories (*)Grid, output, optionalCOUNTnumber of different categories (unique values) within search area-
Rao's QGrid, outputINDEX--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Kernel TypeChoiceKERNEL_TYPEThe kernel's shape.Available Choices:
[0] Square
[1] Circle
Default: 1
RadiusIntegerKERNEL_RADIUScellsMinimum: 0
Default: 2
(*) optional

Command-line

Usage: saga_cmd grid_analysis 24 [-VALUES <str>] [-COUNT <str>] [-INDEX <str>] [-KERNEL_TYPE <str>] [-KERNEL_RADIUS <num>]
  -VALUES:<str>       	Values
	Grid, input
  -COUNT:<str>        	Number of Categories
	Grid, output, optional
  -INDEX:<str>        	Rao's Q
	Grid, output
  -KERNEL_TYPE:<str>  	Kernel Type
	Choice
	Available Choices:
	[0] Square
	[1] Circle
	Default: 1
  -KERNEL_RADIUS:<num>	Radius
	Integer
	Minimum: 0
	Default: 2