Week 8: Geographically Weighted Regression (GWR)

Question 1

What is the use of geographically weighted regression?

Answer 1

• Looks at local conditions rather than the dataset as a whole
• Indicates the strength of the relationship between two or more variables
• Accounts for the special nature of geographic data

Question 2

What are global models?

Answer 2

Statements about processes which are assumed to be stationary and as such are location independent.

Question 3

What are local models?

Answer 3

Spatial disaggregations of global models, the results of which are location-specific.

Question 4

What is spatial nonstationarity?

Answer 4

When the same stimulus provokes a different response in different parts of the region.

Question 5

How do we address the issue of spatial nonstationarity?

Answer 5

Use GWR