1. R Commands for this chapter

All commands are found in this docx file

2. Converting a categorical variable into and ordinal variable

These are the files to retrace the steps for the variable conversion in Section 9.3.3

• The downloaded file: wedgievan.txt
• The Excel-imported file: wedgievan.xlsx
• The re-categorized variable file: wedgievan_recoded.xlsx

3. HCFA source code

• Source file for HCFA © Stephan Th. Gries, provided with kind permission: 05-1_hcfa_3-2.r
• The original download file from the DT website, for the "Golden Horseshoe All": differentvan_orginal.xlsx
• The reformatted file: differentvan.xlsx
• The reformatted file saved as a text file for R: differentvan.txt

4. Logistic regression

Here are the data files for yod-dropping or yod-retention in the lexical item news in Montreal:

• The original downloaded file with problems with the category names: Montreal news.txt
• The file with corrected category names but still with one type of error in the form of some (four) empty dependent variable fields: Montreal news2.txt
• The corrected file, with no errors, for input into R. This file is the file for all regression runs in Chapter 9: Montreal.news3.txt