Statistical analysis of Canadian Vowel Shift Analysis

• Study design & data collection: Thomas Kettig
• Statistical Analysis: Bodo Winter

Libraries required for this analysis:

• stringr
• library
• utisl
• gdata
• car
• plyr
• mgcv
• party

Script files contained in this analysis:

1. 001_perception_preprocessing.R
   Preprocessing of the perception data (vowel categorization).
2. 002_production_preprocessing.R
   Preprocessing of the production data (vowel formants).
3. 003_production_analysis.R
   Analysis of the vowel production data (Lobanov-normalized).
4. 004_perception_analysis.R
   Analysis of the perception data including production/perception correlation.

Data files contained in this analysis:

• raw_data/perception_individual_data folder
  By-participant perception data processed by script 001
• a/o/u/ae.txt
  Lobanov-normalized production data
• perception.txt
  Perception stimulus F1/F2 values
• kettig_raw_vowels.csv
  Non-normalized vowel formants
• processed_data folder
  Processed data resulting from scripts 001 and 002