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Spatial Analytics with ArcGIS

You're reading from   Spatial Analytics with ArcGIS Build powerful insights with spatial analytics

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Product type Paperback
Published in Apr 2017
Publisher Packt
ISBN-13 9781787122581
Length 290 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Eric Pimpler Eric Pimpler
Author Profile Icon Eric Pimpler
Eric Pimpler
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Table of Contents (11) Chapters Close

Preface 1. Introduction to Spatial Statistics in ArcGIS and R 2. Measuring Geographic Distributions with ArcGIS Tools FREE CHAPTER 3. Analyzing Patterns with ArcGIS Tools 4. Mapping Clusters with ArcGIS Tools 5. Modeling Spatial Relationships with ArcGIS Tools 6. Working with the Utilities Toolset 7. Introduction to the R Programming Language 8. Creating Custom ArcGIS Tools with ArcGIS Bridge and R 9. Application of Spatial Statistics to Crime Analysis 10. Application of Spatial Statistics to Real Estate Analysis

Using the Geographically Weighted Regression tool

Geographically Weighted Regression (GWR) is a local form of linear regression for modeling spatially varying relationships. GWR constructs a separate equation for each feature. What this means is that the relationships we're trying to model can and often change across the study area. For example, in our study, we might find that a high percentage of renters are an important predictor of burglary in one area of the county but a weak predictor in others.

GWR works by creating a local model of the variables or process that you are attempting to understand. It fits a regression equation to every feature in the study area. The variables of features that fall within the bandwidth of each target feature are incorporated into the equation. The shape and size of the bandwidth are dependent upon user input for criteria such as the kernel type, bandwidth method, distance...

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