Chapter 2 Introduction

Course Notes for Intermediate R - R for Survey Analysis.

2.1 Aims

Visualisation of the data processing workflow

2.1.1 Day 1

• Load SAS/SPSS data in R.
• Clean the data.
• Exploring the data with summary stats.
• Applying survey weightings.
• Cross tabs.

2.1.2 Day 2

• Plotting survey data.
• Regression & plotting.
• Testing regression assumptions and hypothesis testing.

2.2 Why R

(You’re here so hopefully you’ve been persuaded.)

• No licensing issues. More than 8 people can use it at once.
• Robustness - I can share the course notes and know it runs the same on your computer. Point-and-click SAS/SPSS has failed some scientific papers.
• Reuse - when solving the same problem you can copy-paste existing code.