An object of class data.frame
Examples
data("example_lines")
head(example_lines)
#> # A tibble: 6 × 4
#> trend plunge quality feature_type
#> <dbl> <dbl> <dbl> <chr>
#> 1 54 13 3 stretching
#> 2 61 15 3 stretching
#> 3 74 14 NA stretching
#> 4 80 19 NA stretching
#> 5 63 17 NA stretching
#> 6 76 10 NA stretching