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 | - | - |
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 |
(*) 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)