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Inverse Distance Spatial Weights Matrix

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Inverse Distance Spatial Weights Matrix

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07 May 2010 (Updated )

Creates an inverse-distance SWM, from X and Y coords.Can be used on very large datasets

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Description

Uses x,y coordinates to produce distance-based spatial weight matrices useful for spatial econometric regressions. The user is asked to input x and y coordinates, as well as a lower and upper bound threshold for the neighborhood.
The code is adapted from a previous version by Shawn Bucholtz of the USDA. A correction is made to set the (i,i) th elements (the diagonals) equal to zero.
Unlike other similar programs, this one can be used on very large datasets.

Acknowledgements

This file inspired Inverse And Determinant Of Square Matrix.

MATLAB release MATLAB 7.6 (R2008a)
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Comments and Ratings (1)
03 Apr 2012 Bumseok  
Updates
08 May 2012

Some minor updates, should make code run better.

02 Jan 2013

Updated to include other required programs.

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