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A great intro dataset for data exploration & visualization (alternative to iris).
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allisonhorst/palmerpenguins
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The goal of palmerpenguins is to provide a great dataset for dataexploration & visualization, as an alternative toiris.
You can install the released version of palmerpenguins fromCRAN with:
install.packages("palmerpenguins")To install the development version fromGitHubuse:
# install.packages("remotes")remotes::install_github("allisonhorst/palmerpenguins")
Data were collected and made available byDr. KristenGormanand thePalmer Station, AntarcticaLTER, a member of theLong TermEcological Research Network.
The palmerpenguins package contains two datasets.
library(palmerpenguins)data(package='palmerpenguins')
One is calledpenguins, and is a simplified version of the raw data;see?penguins for more info:
head(penguins)#> # A tibble: 6 × 8#> species island bill_length_mm bill_depth_mm flipper_length_… body_mass_g sex#> <fct> <fct> <dbl> <dbl> <int> <int> <fct>#> 1 Adelie Torge… 39.1 18.7 181 3750 male#> 2 Adelie Torge… 39.5 17.4 186 3800 fema…#> 3 Adelie Torge… 40.3 18 195 3250 fema…#> 4 Adelie Torge… NA NA NA NA <NA>#> 5 Adelie Torge… 36.7 19.3 193 3450 fema…#> 6 Adelie Torge… 39.3 20.6 190 3650 male#> # … with 1 more variable: year <int>
The second dataset ispenguins_raw, and contains all the variables andoriginal names as downloaded; see?penguins_raw for more info.
head(penguins_raw)#> # A tibble: 6 × 17#> studyName `Sample Number` Species Region Island Stage `Individual ID`#> <chr> <dbl> <chr> <chr> <chr> <chr> <chr>#> 1 PAL0708 1 Adelie Penguin … Anvers Torge… Adul… N1A1#> 2 PAL0708 2 Adelie Penguin … Anvers Torge… Adul… N1A2#> 3 PAL0708 3 Adelie Penguin … Anvers Torge… Adul… N2A1#> 4 PAL0708 4 Adelie Penguin … Anvers Torge… Adul… N2A2#> 5 PAL0708 5 Adelie Penguin … Anvers Torge… Adul… N3A1#> 6 PAL0708 6 Adelie Penguin … Anvers Torge… Adul… N3A2#> # … with 10 more variables: `Clutch Completion` <chr>, `Date Egg` <date>,#> # `Culmen Length (mm)` <dbl>, `Culmen Depth (mm)` <dbl>,#> # `Flipper Length (mm)` <dbl>, `Body Mass (g)` <dbl>, Sex <chr>,#> # `Delta 15 N (o/oo)` <dbl>, `Delta 13 C (o/oo)` <dbl>, Comments <chr>
Both datasets contain data for 344 penguins. There are 3 differentspecies of penguins in this dataset, collected from 3 islands in thePalmer Archipelago, Antarctica.
str(penguins)#> tibble [344 × 8] (S3: tbl_df/tbl/data.frame)#> $ species : Factor w/ 3 levels "Adelie","Chinstrap",..: 1 1 1 1 1 1 1 1 1 1 ...#> $ island : Factor w/ 3 levels "Biscoe","Dream",..: 3 3 3 3 3 3 3 3 3 3 ...#> $ bill_length_mm : num [1:344] 39.1 39.5 40.3 NA 36.7 39.3 38.9 39.2 34.1 42 ...#> $ bill_depth_mm : num [1:344] 18.7 17.4 18 NA 19.3 20.6 17.8 19.6 18.1 20.2 ...#> $ flipper_length_mm: int [1:344] 181 186 195 NA 193 190 181 195 193 190 ...#> $ body_mass_g : int [1:344] 3750 3800 3250 NA 3450 3650 3625 4675 3475 4250 ...#> $ sex : Factor w/ 2 levels "female","male": 2 1 1 NA 1 2 1 2 NA NA ...#> $ year : int [1:344] 2007 2007 2007 2007 2007 2007 2007 2007 2007 2007 ...
We gratefully acknowledge Palmer Station LTER and the US LTER Network.Special thanks to Marty Downs (Director, LTER Network Office) for helpregarding the data license & use.
You can find these and more code examples for exploring palmerpenguinsinvignette("examples").
Penguins are fun to summarize! For example:
library(tidyverse)penguins %>% count(species)#> # A tibble: 3 × 2#> species n#> <fct> <int>#> 1 Adelie 152#> 2 Chinstrap 68#> 3 Gentoo 124penguins %>% group_by(species) %>% summarize(across(where(is.numeric),mean,na.rm=TRUE))#> # A tibble: 3 × 6#> species bill_length_mm bill_depth_mm flipper_length_mm body_mass_g year#> <fct> <dbl> <dbl> <dbl> <dbl> <dbl>#> 1 Adelie 38.8 18.3 190. 3701. 2008.#> 2 Chinstrap 48.8 18.4 196. 3733. 2008.#> 3 Gentoo 47.5 15.0 217. 5076. 2008.
Penguins are fun to visualize! For example:
You can download palmerpenguins art (useful for teaching with the data)invignette("art"). If you use this artwork, please cite with:“Artwork by @allison_horst”.
The culmen is the upper ridge of a bird’s bill. In the simplifiedpenguins data, culmen length and depth are renamed as variablesbill_length_mm andbill_depth_mm to be more intuitive.
For this penguin data, the culmen (bill) length and depth are measuredas shown below (thanks Kristen Gorman for clarifying!):
Data are available byCC-0license in accordance with thePalmer Station LTER DataPolicy and theLTER DataAccess Policy for Type I data.
To cite the palmerpenguins package, please use:
citation("palmerpenguins")#>#> To cite palmerpenguins in publications use:#>#> Horst AM, Hill AP, Gorman KB (2020). palmerpenguins: Palmer#> Archipelago (Antarctica) penguin data. R package version 0.1.0.#> https://allisonhorst.github.io/palmerpenguins/. doi:#> 10.5281/zenodo.3960218.#>#> A BibTeX entry for LaTeX users is#>#> @Manual{,#> title = {palmerpenguins: Palmer Archipelago (Antarctica) penguin data},#> author = {Allison Marie Horst and Alison Presmanes Hill and Kristen B Gorman},#> year = {2020},#> note = {R package version 0.1.0},#> doi = {10.5281/zenodo.3960218},#> url = {https://allisonhorst.github.io/palmerpenguins/},#> }
Anyone interested in publishing the data should contactDr. KristenGormanabout analysis and working together on any final products. From Gormanet al. (2014): “Individuals interested in using these data are expectedto follow the US LTER Network’s Data Access Policy, Requirements and UseAgreement:https://lternet.edu/data-access-policy/.”
Data originally published in:
- Gorman KB, Williams TD, Fraser WR (2014). Ecological sexualdimorphism and environmental variability within a community ofAntarctic penguins (genusPygoscelis). PLoS ONE 9(3):e90081.https://doi.org/10.1371/journal.pone.0090081
Data citations:
Adélie penguins:
- Palmer Station Antarctica LTER and K. Gorman, 2020. Structural sizemeasurements and isotopic signatures of foraging among adult maleand female Adélie penguins (Pygoscelis adeliae) nesting along thePalmer Archipelago near Palmer Station, 2007-2009 ver 5.Environmental Data Initiative.https://doi.org/10.6073/pasta/98b16d7d563f265cb52372c8ca99e60f(Accessed 2020-06-08).
Gentoo penguins:
- Palmer Station Antarctica LTER and K. Gorman, 2020. Structural sizemeasurements and isotopic signatures of foraging among adult maleand female Gentoo penguin (Pygoscelis papua) nesting along thePalmer Archipelago near Palmer Station, 2007-2009 ver 5.Environmental Data Initiative.https://doi.org/10.6073/pasta/7fca67fb28d56ee2ffa3d9370ebda689(Accessed 2020-06-08).
Chinstrap penguins:
- Palmer Station Antarctica LTER and K. Gorman, 2020. Structural sizemeasurements and isotopic signatures of foraging among adult maleand female Chinstrap penguin (Pygoscelis antarcticus) nestingalong the Palmer Archipelago near Palmer Station, 2007-2009 ver 6.Environmental Data Initiative.https://doi.org/10.6073/pasta/c14dfcfada8ea13a17536e73eb6fbe9e(Accessed 2020-06-08).
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A great intro dataset for data exploration & visualization (alternative to iris).
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