The palmerpenguins:penguins dataset is grouped by the variable
"species" and a data frame is produced with statistics for
average, minimum and maximum body mass.
| avg_body_mass | numeric species average body mass |
| min_body_mass | numeric species minimum body mass |
| max_body_mass | numeric species maximum body mass |
| mid_labels | character species average body mass |
penguins_statsAn object of class data.table (inherits from data.frame) with 3 rows and 5 columns.