Module Kernel Density Estimation
Kernel density estimation. If any point is currently in selection only selected points are taken into account.
References:
- Fotheringham, A.S., Brunsdon, C., Charlton, M. (2000): Quantitative Geography. Sage. 270p.
- Lloyd, C.D. (2010): Spatial data analysis - An introduction for GIS users. Oxford. 206p.
- Author: O.Conrad (c) 2010
- Specification: grid
- Menu: Grid|Gridding
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Points | Shapes (input) | POINTS | - | - |
| Target System (*) | Grid (optional input) | TARGET_TEMPLATE | use this grid's system for output grids | - | |
| Output | Target Grid | Grid (output) | TARGET_OUT_GRID | - | - |
| Options | Population (*) | Table field | POPULATION | - | - |
| Radius | Floating point | RADIUS | - | Minimum: 0.000000 Default: 1.000000 | |
| Kernel | Choice | KERNEL | - | Available Choices: [0] quartic kernel [1] gaussian kernel Default: 0 | |
| Target Grid System | Choice | TARGET_DEFINITION | - | Available Choices: [0] user defined [1] grid or grid system Default: 0 | |
| Left | Floating point | TARGET_USER_XMIN | - | Default: 0.000000 | |
| Right | Floating point | TARGET_USER_XMAX | - | Default: 100.000000 | |
| Bottom | Floating point | TARGET_USER_YMIN | - | Default: 0.000000 | |
| Top | Floating point | TARGET_USER_YMAX | - | Default: 100.000000 | |
| Cellsize | Floating point | TARGET_USER_SIZE | - | Minimum: 0.000000 Default: 1.000000 | |
| Fit | Choice | TARGET_USER_FITS | - | Available Choices: [0] nodes [1] cells Default: 0 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd grid_gridding 6 [-POINTS <str>] [-POPULATION <str>] [-RADIUS <str>] [-KERNEL <str>] [-TARGET_DEFINITION <str>] [-TARGET_USER_XMIN <str>] [-TARGET_USER_XMAX <str>] [-TARGET_USER_YMIN <str>] [-TARGET_USER_YMAX <str>] [-TARGET_USER_SIZE <str>] [-TARGET_USER_FITS <str>] [-TARGET_TEMPLATE <str>] [-TARGET_OUT_GRID <str>] -POINTS:<str> Points Shapes (input) -POPULATION:<str> Population Table field -RADIUS:<str> Radius Floating point Minimum: 0.000000 Default: 1.000000 -KERNEL:<str> Kernel Choice Available Choices: [0] quartic kernel [1] gaussian kernel Default: 0 -TARGET_DEFINITION:<str> Target Grid System Choice Available Choices: [0] user defined [1] grid or grid system Default: 0 -TARGET_USER_XMIN:<str> Left Floating point Default: 0.000000 -TARGET_USER_XMAX:<str> Right Floating point Default: 100.000000 -TARGET_USER_YMIN:<str> Bottom Floating point Default: 0.000000 -TARGET_USER_YMAX:<str> Top Floating point Default: 100.000000 -TARGET_USER_SIZE:<str> Cellsize Floating point Minimum: 0.000000 Default: 1.000000 -TARGET_USER_FITS:<str> Fit Choice Available Choices: [0] nodes [1] cells Default: 0 -TARGET_TEMPLATE:<str> Target System Grid (optional input) -TARGET_OUT_GRID:<str> Target Grid Grid (output)