2005 ICPSR SUMMER PROGRAM

REGRESSION III: ADVANCED METHODS

R Scripts

Click on the following links to see the R scripts that correspond to the lectures. Each script is contained in a file with the filename extension ".R" This is the default file extension used by the RWinEdt text editor. But, the R scripts are all ASCII text files; therefore, they can be read by any text editor or word processor.

• First Week
• Wednesday, June 29: Introduction to R
• Wednesday and Thursday, June 30-July 1: Distributions and Transformations

• Second Week
• Wednesday, July 6: Dummy variables
• Thursday, July 7: Interactions and effect displays
• Friday, July 8: Measuring relative importance

• Third Week
• Wednesday, July 13: Outliers, leverage, and influence
• Thursday and Friday, July 14-15: Robust Regression
• Click here to download the "weakliem2.txt" file used in the preceding two R scripts

• Fourth Week
• Monday, July 18: Nonconstant error variance and nonlinear functional forms
• Tuesday, July 19: Bivariate loess (or "lowess") smoothing
• Click here to download the "polls97.sav" file used in the preceding R script
• Tuesday, July 19: In-class demonstration of loess graphics and statistics
• Click here to download the "turnout.txt" file used in the preceding R script
• Wednesday, July 20: Multivariate loess and generalized additive models
• Click here to download the "Monhart.txt" file used in the preceding R script

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