Tool Simpson Index
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
- Author: O.Conrad (c) 2019
- Menu: Grid|Analysis|Diversity
Parameters
| Name | Type | Identifier | Description | Constraints |
Input | Categories | Grid, input | CATEGORIES | - | - |
Output | Number of Categories (*) | Grid, output, optional | COUNT | number of different categories (unique values) within search area | - |
Simpson Index | Grid, output | INDEX | - | - |
Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
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 |
(*) optional |
Command-line
Usage: saga_cmd grid_analysis 23 [-CATEGORIES <str>] [-COUNT <str>] [-INDEX <str>] [-KERNEL_TYPE <str>] [-KERNEL_RADIUS <num>]
-CATEGORIES:<str> Categories
Grid, input
-COUNT:<str> Number of Categories
Grid, output, optional
-INDEX:<str> Simpson Index
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