data(indoVowelData)
plotVowels(vowel=indo$vowel, f1=indo$f1, f2=indo$f2, grouping.factor=
indo$gender, norm.method='bark', match.unit=FALSE,
poly.order=c('i','e','a','o','u'))
plotVowels(data=indo, grouping.factor='subj', single.plot=FALSE,
match.axes='relative', points='none', means.cex=1.5,
poly.order=c('i','e','a','o','u'))Run the code above in your browser using DataLab