| Tool Name | GWR for Multiple Predictors (Gridded Model Output) |
| Tool ID | 5 |
| Library ID | statistics_regression |
| Version | 1.0 |
| Author(s) | O.Conrad (c) 2010 |
Fotheringham, S.A., Brunsdon, C., Charlton, M. (2002): Geographically Weighted Regression: the analysis of spatially varying relationships. John Wiley & Sons. online
Fotheringham, S.A., Charlton, M., Brunsdon, C. (1998): Geographically weighted regression: a natural evolution of the expansion method for spatial data analysis. Environment and Planning A 30(11), 1905–1927. online
Lloyd, C. (2010): Spatial Data Analysis - An Introduction for GIS Users. Oxford, 206p.
| Name | Type | Identifier | Description | Constraints |
|---|---|---|---|---|
| Input | ||||
| Points | shapes, input | POINTS | ||
| Target System | grid, input, optional | TARGET_TEMPLATE | use this grid's system for output grids | |
| Output | ||||
| Regression | shapes, output | REGRESSION | ||
| Quality | grid, output | QUALITY | ||
| Intercept | grid, output | INTERCEPT | ||
| Slopes | grid list, output | SLOPES | ||
| Options | ||||
| Dependent Variable | table field | DEPENDENT | ||
| Predictors | table fields | PREDICTORS | ||
| Logistic Regression | boolean | LOGISTIC | Default: 0 | |
| Target Grid System | choice | TARGET_DEFINITION | Available Choices: [0] user defined [1] grid or grid system Default: 0 | |
| Cellsize | floating point number | TARGET_USER_SIZE | Minimum: 0.000000 Default: 1.000000 | |
| West | floating point number | TARGET_USER_XMIN | Default: 0.000000 | |
| East | floating point number | TARGET_USER_XMAX | Default: 100.000000 | |
| South | floating point number | TARGET_USER_YMIN | Default: 0.000000 | |
| North | floating point number | TARGET_USER_YMAX | Default: 100.000000 | |
| Columns | integer number | TARGET_USER_COLS | Number of cells in East-West direction. | Minimum: 1 Default: 101 |
| Rows | integer number | TARGET_USER_ROWS | Number of cells in North-South direction. | Minimum: 1 Default: 101 |
| Rounding | boolean | TARGET_USER_FLAT | Round bounding coordinates to multiples of cell size. Ignored if cell size has decimal places. | Default: 1 |
| Fit | choice | TARGET_USER_FITS | Available Choices: [0] nodes [1] cells Default: 0 | |
| Weighting Function | choice | DW_WEIGHTING | Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 3 | |
| Power | floating point number | DW_IDW_POWER | Minimum: 0.000000 Default: 2.000000 | |
| Bandwidth | floating point number | DW_BANDWIDTH | Bandwidth for exponential and Gaussian weighting | Minimum: 0.000000 Default: 1.000000 |
| Search Range | choice | SEARCH_RANGE | Available Choices: [0] local [1] global Default: 1 | |
| Maximum Search Distance | floating point number | SEARCH_RADIUS | local maximum search distance given in map units | Minimum: 0.000000 Default: 1000.000000 |
| Number of Points | choice | SEARCH_POINTS_ALL | Available Choices: [0] maximum number of nearest points [1] all points within search distance Default: 1 | |
| Minimum | integer number | SEARCH_POINTS_MIN | minimum number of points to use | Minimum: 1 Default: 16 |
| Maximum | integer number | SEARCH_POINTS_MAX | maximum number of nearest points | Minimum: 1 Default: 20 |