OLS with Spatial Test

Ordinary least squares with results and diagnostics. More information can be found at here

Note: The input table should not contain missing values. You can use the Missing Value node to replace them.

Options

Geometry column: Select the geometry column to use.
ID column: Select the column which contains for each observation in the input data a unique ID, it should be an integer column. The IDs must match with the values of the Spatial Weights node ID column. If 'none' is selected, the IDs will be automatically generated from 0 to the number of rows flowing the order of the first input table.
Dependent variable: The column containing the dependent variable to use for the calculation of the spatial OLS model.
Independent variables: The columns containing the independent variables to use for the calculation of the spatial OLS model.
Spatial Diagnostics: If selected, the node computes the Anselin-Kelejian test
Robust: If ‘white’, then a White consistent estimator of the variance-covariance matrix is given. If ‘hac’, then a HAC consistent estimator of the variance-covariance matrix is given. Set to None for default.
Sig2n k: If True, then use n-k to estimate sigma^2. If False, use n. Default set to True.
Moran: If True, compute Moran’s I on the residuals. Note: requires spat_diag=True. Default set to True.
White Test: If True, compute White’s specification robust test (requires nonspat_diag=True). Default set to True.

Advanced Setting

VM: If True, include variance-covariance matrix in summary results. Default set to False.

: Input Table with dependent and independent variables for calculation of the spatial OLS model.
: Input Table with spatial weights for calculation of the spatial OLS model.

You want to see the source code for this node? Click the following button and we’ll use our super-powers to find it for you.

To use this node in KNIME, install the extension Geospatial Analytics Extension for KNIME from the below update site following our NodePit Product and Node Installation Guide:

v5.2

A zipped version of the software site can be downloaded here.

Plugin provider: SDL, Harvard, Cambridge US

Plugin version: 1.2.0.202311151543

On NodePit since: 2023-12-06

Last update: 2024-04-29

KNIME versions: Since v5.2

Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.