LearnAI measured-data release: palmer-penguins-v1
Source package: palmerpenguins, by Allison Marie Horst, Alison Presmanes Hill and Kristen B. Gorman.
Package citation: Horst AM, Hill AP, Gorman KB (2020). palmerpenguins: Palmer Archipelago (Antarctica) penguin data. https://doi.org/10.5281/zenodo.3960218
Source documentation: https://allisonhorst.github.io/palmerpenguins/
Acknowledgment: Kristen Gorman, Palmer Station LTER and the US LTER Network.
Data license: CC0 (https://creativecommons.org/publicdomain/zero/1.0/), as stated by the source package.
No package artwork has been copied.

Pinned repository revision: 8957207b78d6ccd1b4654a9dd9c9041b657478ab
Downloaded source:
https://raw.githubusercontent.com/allisonhorst/palmerpenguins/8957207b78d6ccd1b4654a9dd9c9041b657478ab/inst/extdata/penguins.csv
Retrieval date: 2026-10-24 (America/Los_Angeles)
Original CSV SHA-256:
f204db2c753b0937caac3cb35258562c14f073e4bbc76be24b4c51ce22767a93

The adjacent palmer-penguins-v1.csv is an unchanged copy of the source CSV.
344 rows; 8 original columns; years 2007–2009.
The application JSON preserves the original row order and includes species, island, flipper length (mm), body mass (g) and year.
JSON transformations: convert numeric strings to numbers; convert NA measurements to null; assign a 1-based file-row number. This display number is not an individual animal identifier.
Bill dimensions and sex remain in the downloadable source CSV but are not controls or displayed variables in this workbench.
No measurement was imputed, normalized, clipped, jittered or randomly regenerated.
Two rows lack both flipper length and body mass. Paired summaries use the 342 complete rows before filtering; selected-record tables retain missing rows.
Each saved capture stores species/island filter settings against this frozen v1 dataset. Changing source measurements requires a new dataset/lab identity or explicit migration so old captures remain reproducible.
These are observations, not randomized treatment data. Filters do not establish causal effects or worldwide population estimates.