nzilbb.vowels 0.3.1

nzilbb.vowels 0.3.0

nzilbb.vowels 0.3

• Initial submission to CRAN
• mds_test() and plot_mds_test() added to determine number of dimensions for MDS.
• pc_flip() added to reverse orientation of selected PCs in PCA analysis.

nzilbb.vowels 0.2.1

• All functions required for Wilson Black et al. (2022)