Math 141 Lab Notes

Brief overview of commands: R Reference Page. Tom Short's R Reference Card (pdf).

Lab Notes

• Intro to R
• Random Permutations
• Binomial Probability Computations
• Expected Values
• Inference for the Binomial
• Testing Independence: chi-squared
• Graphical Methods in R
• Inference: Normal Distributions
• Basic Least Squares and Inference, then Homework!
• Multiple Regression and case diagnostics
• the anova function and F-tests
• Analysis of Variance
• Logistic Regression

Data Import/Export

• create/edit datasets
• raw data: import/export
• R to R: dump/source
• save workspace

Datasets

• State level SAT data
  Use read.csv("http://people.reed.edu/~jones/141/sat.csv") to load.
• CPS data
  Use read.csv("http://people.reed.edu/~jones/141/cps.csv") to load.
• Anorexia Study data
• Anscombe's data
• Berkeley Guidance Study data load with
  read.table("http://people.reed.edu/~jones/141/Berkeley.dat",header=TRUE)
• Birth Weight data
• Bortkiewicz's horse kick data
• Brain/Body size data
• Braking Distance data
• Science Library Budgets
• Sir Cyril Burt's Twin Study
• 1993 Consumer Reports Auto data
• British Coal Mining Disasters
• Mauna Loa CO2 data
  Mauna Loa CO2 Description Use read.table("http://people.reed.edu/~jones/141/co2.dat",header=TRUE) to load.
• Cuckoo Egg Data
• Crab Growth data
• Darwin's Zea mays data
• Death Penalty and race
• Election 2008 state level data. Load with
  read.table("http://people.reed.edu/~jones/141/Election08.dat",header=TRUE)
• Florida Election 2000 data
• Framingham Heart Study
• 1972 Fuel Consumption data
• Snow Goose Survey data
• Glucose Tolerance test data
• Gun registration data
• Highway Accidents
• Horseshoe crab data Load with
  read.table("http://people.reed.edu/~jones/141/HorseshoeCrab.dat",header=TRUE)
• Michelson's data
• Seismological data read with scan("http://people.reed.edu/~jones/141/MSH.html")
• Simon Newcomb's data
• Shuttle O-Ring data
• Snow Gauge data
• Vitamin C data

Choropleths

Mac specific version!

Generic versions

R Functions

• Compare MSE's: MSE.R
• Compare Probability Histograms
• Shaded Normal densities
• Plot Binomial Rejection Region
• Binomial test Power Curves: bin.pwr() and bin.pwr.ss().
• Random Walks
• Binomial Histograms
• add normal curve to plot
• Log Odds Ratio and CI
• Line determined by two points
• 3d scatterplots
• silly MCMC function