Tool Polynomial Trend from Grids
Fits for each cell a polynomial trend function. Outputs are the polynomial coefficients for the polynomial trend function of chosen order.
- Author: O. Conrad (c) 2011
- Menu: Spatial and Geostatistics|Regression
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Dependent Variables | Grid list (input) | Y_GRIDS | - | - |
| Independent Variable (per Grid and Cell) (*) | Grid list (optional input) | X_GRIDS | - | - |
| Output | Polynomial Coefficients | Grid list (output) | COEFF | - | - |
| Coefficient of Determination (*) | Grid (optional output) | R2 | - | - |
| Options | Grid system | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Polynomial Order | Integer | ORDER | - | Minimum: 1
Default: 1 |
| Get Independent Variable from ... | Choice | XSOURCE | - | Available Choices:
[0] list order
[1] table
[2] grid list
Default: 0 |
| (*) optional |
Command-line
Usage: saga_cmd statistics_regression 9 [-Y_GRIDS <str>] [-COEFF <str>] [-R2 <str>] [-ORDER <num>] [-XSOURCE <str>] [-X_TABLE <str>] [-X_GRIDS <str>]
-Y_GRIDS:<str> Dependent Variables
Grid list (input)
-COEFF:<str> Polynomial Coefficients
Grid list (output)
-R2:<str> Coefficient of Determination
Grid (optional output)
-ORDER:<num> Polynomial Order
Integer
Minimum: 1
Default: 1
-XSOURCE:<str> Get Independent Variable from ...
Choice
Available Choices:
[0] list order
[1] table
[2] grid list
Default: 0
-X_TABLE:<str> Independent Variable (per Grid)
Static table
1 Fields:
- 1. [8 byte floating point number] Value
-X_GRIDS:<str> Independent Variable (per Grid and Cell)
Grid list (optional input)