1. ANALYSIS SPATIAL DATA University of Pennsylvania
Tony E. Smith
University of Pennsylvania
Point Pattern Analysis
Continuous Pattern Analysis
Regional Data Analysis

2. POINT PATTERN ANALYSIS
Example Application Areas
• Housing Sales
• Crime Incidents
• Infectious Diseases
• Intergroup Conflict Incidents
Philadelphia Example

3. • Only meaningful relative to Population
Where are Conflict “Hot Spots” ?
• Only meaningful relative to Population
 Perhaps even Racial mix
• What would random incidents look like ?
ACTUAL
RANDOM
• How analyze this statistically ?

4. Example Application Areas • Environmental Pollution
CONTINUOUS PATTERN
ANALYSIS
Example Application Areas
• Weather Patterns
• Mineral Exploration
• Environmental Pollution
• Geologic Analyses
Venice Example
INDUSTRY
VENICE

5. • Predicted Water Table Levels • Analysis for Policy Conclusions
Results for Venice:
• Predicted Water Table Levels
• Analysis for Policy Conclusions
Can be 95% confident that each meter of
industrial drawdown lowers the Venice
water table by at least 15 cm.
ACTION: Drawdown was restricted (1973)
RESULT: Venice elevation increased (1976)

6. • National Area Data by: Columbus Crime Example
REGIONAL DATA
ANALYSIS
Example Applications
• Urban Area Data by:
• census tracts
• block groups
• National Area Data by:
• states
• counties
Columbus Crime Example
OHIO
Columbus

7. Columbus Census-Tract Data • Explanatory Variables
• Crime Rate per capita
• Explanatory Variables
House Values
Median Income