Lecture 8: Model Reduction
Albert Einstein `Things should be made as
simple as possible, but not any simpler.'
In cases where there is a cost associated
with collecting more variables, we want good
results with fewer variables
Increase the reliab
STAT 6210 - Homework #1 - Due Tuesday, January 26
Due date: January 26, 2016, 6:10 PM
Your homework submission should contain
(i) your R code,
(ii) outputs from R (including gures),
(iii) answers to the questions.
Do not print out your homework. Save it a
STAT 6210 - R Session 1
Contents Operations and Assignment
WHILE and FOR Loops
Random Number Generation
List of all functions
Operations and Assignment Lets start simple. The R Console can be used as a calculator.
Introduction to R
After this class, you will have a working knowledge of:
In order to be a sta
STAT 6210 - R Session 2
Contents Working Directory and Data Loading
Working Directory and Data Loading
current working directory.
In order to open a le on R, you should rst know what is the
#  "/Users/abarut/Dropbo
Data Loading in R
Hypothesis Testing in R
Let's talk about hypothesis testing.
Every hypothesis test starts with the null hypothesis, this should be a skeptical
Contingency Tables and ANOVA
Stat 6210 - Lecture 3
Based on a clinical trial, the table show the eect of the drug sulphinpyrazone on deaths after