lobanov_2.md
In nzilbb.vowels: Vowel Covariation Tools

Normalised values haven't changed in qb_vowels.

Code
  lobanov_2(qb_vowels)
Output
  # A tibble: 26,331 x 16
     speaker     vowel F1_50 F2_50 participant_age_category participant_gender
     <glue>      <chr> <int> <int> <chr>                    <chr>             
   1 QB_NZ_F_281 GOOSE   427  2050 46-55                    F                 
   2 QB_NZ_F_281 DRESS   440  2320 46-55                    F                 
   3 QB_NZ_F_281 NURSE   434  1795 46-55                    F                 
   4 QB_NZ_F_281 KIT     554  2050 46-55                    F                 
   5 QB_NZ_F_281 LOT     530  1130 46-55                    F                 
   6 QB_NZ_F_281 START   851  1810 46-55                    F                 
   7 QB_NZ_F_281 DRESS   415  2649 46-55                    F                 
   8 QB_NZ_F_281 STRUT   805  1585 46-55                    F                 
   9 QB_NZ_F_281 START   857  1730 46-55                    F                 
  10 QB_NZ_F_281 TRAP    624  2346 46-55                    F                 
  # i 26,321 more rows
  # i 10 more variables: participant_nz_ethnic <chr>, word_freq <int>,
  #   word <glue>, time <dbl>, vowel_duration <dbl>, articulation_rate <dbl>,
  #   following_segment_category <fct>, amplitude <dbl>, F1_lob2 <dbl>,
  #   F2_lob2 <dbl>