Tool Rao's Q Diversity Index

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

Rocchini, D., Marcantonio, M., Ricotta, C. (2017): Measuring Rao's Q diversity index from remote sensing: An open source solution. Ecological Indicators, Volume 72, p. 234-238. doi:10.1016/j.ecolind.2016.07.039..

Author: O.Conrad (c) 2019
Menu: Grid|Analysis|Diversity

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Values	Grid list (input)	`VALUES`	-	-
Output	Rao's Q	Grid (output)	`INDEX`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Normalize	Boolean	`NORMALIZE`	-	Default: 0
	Distance	Choice	`DISTANCE`	-	Available Choices: [0] Euclidian [1] Manhatten [2] Canberra [3] Minkowski Default: 0
	Lambda	Floating point	`LAMBDA`	Lambda for Minkowski distance calculation.	Minimum: 0.000100 Default: 1.000000
	Kernel Type	Choice	`KERNEL_TYPE`	The kernel's shape.	Available Choices: [0] Square [1] Circle Default: 1
	Radius	Integer	`KERNEL_RADIUS`	cells	Minimum: 0 Default: 2

Command-line

Usage: saga_cmd grid_analysis 25 [-VALUES <str>] [-NORMALIZE <str>] [-INDEX <str>] [-DISTANCE <str>] [-LAMBDA <double>] [-KERNEL_TYPE <str>] [-KERNEL_RADIUS <num>]
  -VALUES:<str>       	Values
	Grid list (input)
  -NORMALIZE:<str>    	Normalize
	Boolean
	Default: 0
  -INDEX:<str>        	Rao's Q
	Grid (output)
  -DISTANCE:<str>     	Distance
	Choice
	Available Choices:
	[0] Euclidian
	[1] Manhatten
	[2] Canberra
	[3] Minkowski
	Default: 0
  -LAMBDA:<double>    	Lambda
	Floating point
	Minimum: 0.000100
	Default: 1.000000
  -KERNEL_TYPE:<str>  	Kernel Type
	Choice
	Available Choices:
	[0] Square
	[1] Circle
	Default: 1
  -KERNEL_RADIUS:<num>	Radius
	Integer
	Minimum: 0
	Default: 2