Matt Winn

Au.D., Ph.D.

University of




Here are some tools I use for data analysis...


Processing and plotting acoustic meaurements of vowels using R

Part 1 - processing the data

Part 2 - plotting the data



Use R to compile all of your small data files into one big data frame


Add polynomial terms to your data frame for growth curve analysis


Convert sound frequencies to various scales
(convert frequency difference to octave diff or cochlear space difference, etc)
(an excel file)


Observe context effects in identification functions


See how sample size affects means comparison


See how random effects structure can help to estimate fixed effects


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