This project contains all the artifacts for supporting exploratory analysis and plots for Project 2.
There are 6 plots for the 6 question sets posed for project 2. They are described as follows:
Demonstrate whether or not total emissions from PM2.5 have decreased in the United States from 1999 -> 2008.
Barplots are chosen because data is discrete (Annual only samples by category)
Demonstrate whether or not total emissions from PM2.5 decreased in the Baltimore City, Maryland (fips == "24510") from 1999 -> 2008
Barplots are chosen because data is discrete (Annual only samples by category)
Demonstrate of the 4 types of sources (point, nonpoint, road, nonroad) have either increasing or decreasing emissions from 1999 -> 2008
Barplots are chosen because data is discrete (Annual only samples by category)
Show changes in annual Emissions of Coal-Combustion-Based sources in the US from 1999 -> 2008
Barplots are chosen because data is discrete (Annual only samples by category)
Show how emissions from motor vehicle sources changed from 1999–2008 in Baltimore City.
Definition of Motor Vehicle interpreted as: "A road vehicle powered by an internal combustion engine"
From analysis of reference data Source_Classification_Code it is assumed Data.Category of "Onroad" sufficiently categorizes motor vehicles for this study
Barplots are chosen because data is discrete (Annual only samples by category)
Compare emissions from motor vehicle sources in Baltimore City (fips == "24510") with emissions from motor vehicle sources in Los Angeles County, California (fips == "06037").
Which city has seen greater changes over time in motor vehicle emissions?
Definition of Motor Vehicle interpreted as: "A road vehicle powered by an internal combustion engine"
From analysis of reference data Source_Classification_Code it is assumed Data.Category of "Onroad" sufficiently categorizes motor vehicles for this study
Barplots are chosen because data is discrete (Annual only samples by category)