Instructions
For this lab you will, again, be submitting an HTML markdown document. We will be working with the San Francisco City Salary Data set posted on www.kaggle.com. The data set is posted on our Poly Learn, but you may also just get it straight from Kaggle.
You must use either the lattice package or the ggplot2 package to create the graphs listed below. You may NOT use the Base Plotting System.
Importing the data involves a few special things:
• Make sure header = TRUE
• Include na.strings = "Not Provided"
Exercises
1. Create a plot with overlaid histograms of Base Pay for the 3 jobs with the highest average Base Pay.
2.0
1.5
JobTitle
1.0
Chief of Police
Chief, Fire Department
Gen Mgr, Public Trnsp Dept
0.5
0.0
300000
310000
320000
Base Salary ($)
2. Create a plot with side-by-side boxplots of Base Pay by status (FT or PT).
1
3e+05
2e+05
BasePay
1e+05
0e+00
FT PT
Status
3. Create a multipanel plot (one panel for each value of Year) of Total Pay versus Base Pay with overlaid linear fits.
2
TotalPay
2011 2012 2013 2014
4e+05
Year
2014
2013
2012
2e+05
2011
0e+00
0e+001e+052e+053e+050e+001e+052e+053e+050e+001e+052e+053e+050e+001e+052e+053e+05
BasePay
4. Create a multipanel plot (one panel for each Job) of side-by-side boxplots (one boxplot for each value of Year) of BasePay for the 3 jobs that occur most frequently in the data set.
3
BasePay
Registered Nurse Special Nurse Transit Operator
150000
100000
50000
0
2012 2013 2014 2012 2013 2014 2012 2013 2014
as.factor(Year)
as.factor(Year)
2012
2013
2014
Additional Notes
• Be sure to add appropriate titles and axes labels to all of your graphs.
• Make your graphs colorful!
• Consider adding any other details you think would add to the visual appeal of your graphs without taking away from the data.
4
