SAGA 9.4.2 | Tool Library Documentation

Simpson Index


Description

Grid based analysis of diversity with the Simpson Index. The index is calculated locally for each grid cell using the specified kernel (aka 'moving window'). It is assumed that the grid cell values represent a classification.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputCategoriesgrid, inputCATEGORIES--
OutputNumber of Categoriesgrid, output, optionalCOUNTnumber of different categories (unique values) within search area-
Simpson Indexgrid, outputINDEX--
OptionsGrid Systemgrid systemPARAMETERS_GRID_SYSTEM--
Kernel TypechoiceKERNEL_TYPEThe kernel's shape.Available Choices: [0] Square [1] Circle Default: 1
Radiusinteger numberKERNEL_RADIUScellsMinimum: 0 Default: 2

Command Line


Usage: saga_cmd grid_analysis 23 [-CATEGORIES ] [-COUNT ] [-INDEX ] [-KERNEL_TYPE ] [-KERNEL_RADIUS ]
  -CATEGORIES:   	Categories
	grid, input
  -COUNT:        	Number of Categories
	grid, output, optional
  -INDEX:        	Simpson Index
	grid, output
  -KERNEL_TYPE:  	Kernel Type
	choice
	Available Choices:
	[0] Square
	[1] Circle
	Default: 1
  -KERNEL_RADIUS:	Radius
	integer number
	Minimum: 0
	Default: 2