Hadley Wickham

Hadley Wickham in 2015

Born|

Hadley Alexander Wickham

(1979-10-14) 14 October 1979 (age 46)

Hamilton, New Zealand

Alma mater| University of Auckland (BSc, MSc)
Iowa State University (PhD)
Known for| ggplot2[1]
tidyverse
R packages
Awards|

* COPSS Presidents' Award (2019)
* Fellow of the American Statistical Association (2015)

Scientific career
Fields|

* Data science
* Visualization
* Statistics[2]

Institutions|

* Posit PBC (former RStudio Inc.)
* University of Auckland
* Stanford University
* Rice University

Thesis| Practical tools for exploring data and models (2008)
Doctoral advisor|

* Dianne Cook
* Heike Hofmann[3]

Website| hadley.nz

Hadley Alexander Wickham (born 14 October 1979) is a New Zealand statistician known for his work on open-source software for the R statistical programming environment. He is the chief scientist at Posit PBC and an adjunct professor of statistics at the University of Auckland, Stanford University, and Rice University. His work includes the data visualisation system ggplot2 and the tidyverse, a collection of R packages for data science based on the concept of tidy data.

## Contents

* 1 Early life and education
* 2 Career
* 2.1 Honors and awards
* 3 Publications
* 4 References
* 5 External links

## Early life and education

Wickham was born in Hamilton, New Zealand. He received a bachelor's degree in human biology and a master's degree in statistics at the University of Auckland in 1999–2004 and his PhD at Iowa State University in 2008, supervised by Di Cook and Heike Hofmann.[3][4]

His sister, Charlotte Wickham, is also a statistician, data scientist and educator. She taught in the Statistics Department at Oregon State University between 2011 and 2022,[5] and currently works for Posit PBC on the developer relations team.[6] She holds a first-class honours bachelor of science degree in Statistics from University of Auckland and a PhD in statistics from University of California, Berkeley.[7]

## Career

Wickham is the chief scientist at Posit PBC (formerly RStudio PBC)[8] and an adjunct professor of statistics at the University of Auckland, Stanford University, and Rice University.[9][10][11]

He is a prominent and active member of the R user community, and has developed several notable and widely used packages including ggplot2, plyr, dplyr and reshape2.[11][12] Wickham's data analysis packages for R are collectively known as the tidyverse.[13] According to Wickham's tidy data approach, each variable should be a column, each observation should be a row, and each type of observational unit should be a table.[14]

### Honors and awards

In 2006 he was awarded the John Chambers Award for Statistical Computing for his work developing tools for data reshaping and visualisation.[15] Wickham was named a Fellow by the American Statistical Association in 2015 for "pivotal contributions to statistical practice through innovative and pioneering research in statistical graphics and computing".[16] Wickham was awarded the international COPSS Presidents' Award in 2019 for "influential work in statistical computing, visualisation, graphics, and data analysis" including "making statistical thinking and computing accessible to a large audience".[17]

## Publications

Wickham's publications[2] include:

* Wickham, Hadley; Grolemund, Garrett (2017). R for Data Science : Import, Tidy, Transform, Visualize, and Model Data. Sebastopol, CA: O'Reilly Media. ISBN 978-1491910399. OCLC 968213225. https://r4ds.had.co.nz/.
* Wickham, Hadley (2015). R Packages. Sebastopol, CA: O'Reilly Media, Inc. ISBN 978-1491910597.
* Wickham, Hadley (2014). Advanced R. New York: Chapman & Hall/CRC The R Series. ISBN 978-1466586963.
* Wickham, Hadley (2011). "The split-apply-combine strategy for data analysis". Journal of Statistical Software 40 (1): 1–29. doi:10.18637/jss.v040.i01.
* Wickham, Hadley (2010). "A layered grammar of graphics". Journal of Computational and Graphical Statistics 19 (1): 3–28. doi:10.1198/jcgs.2009.07098.
* Wickham, Hadley (2010). "stringr: modern, consistent string processing". The R Journal 2 (2): 3–28. doi:10.32614/RJ-2010-012.
* Wickham, Hadley (2009). ggplot2: Elegant Graphics for Data Analysis (Use R!). New York: Springer. ISBN 978-0387981406. [1]
* Wickham, Hadley (2007). "Reshaping data with the reshape package". Journal of Statistical Software 21 (12): 1–20. doi:10.18637/jss.v021.i12.

## References

1. ↑ 1.0 1.1 Wickham, Hadley (2011). "ggplot2". Wiley Interdisciplinary Reviews: Computational Statistics 3 (2): 180–185. doi:10.1002/wics.147. ISSN 1939-5108.
2. ↑ 2.0 2.1 {{Google Scholar id}} template missing ID and not present in Wikidata.
3. ↑ 3.0 3.1 Hadley Wickham at the Mathematics Genealogy Project
4. ↑ Wickham, Hadley Alexander (2008). Practical tools for exploring data and models. iastate.edu (PhD). Iowa State University. doi:10.31274/rtd-180813-16852. OCLC 247410260. ProQuest 194000416. Retrieved 2019-02-14.
5. ↑ "Teaching" (in en). https://www.cwick.co.nz/teaching/.
6. ↑ "Charlotte Wickham" (in en). https://www.cwick.co.nz/.
7. ↑ "Charlotte Wickham | Department of Statistics" (in en). 2024-10-18. https://stat.oregonstate.edu/directory/charlotte-wickham.
8. ↑ "Hadley Wickham" (in en). https://www.rstudio.com/authors/hadley-wickham/.
9. ↑ "University of Auckland". https://www.stat.auckland.ac.nz/people/hwic004.
10. ↑ "Hadley Wickham's Profile - Stanford Profiles". https://profiles.stanford.edu/hadley-wickham. [|permanent dead link|dead link}}]
11. ↑ 11.0 11.1 "About - RStudio". https://www.rstudio.com/about/.
12. ↑ "Top 100 R Packages for 2013 (Jan-May)!". R-statistics blog. 13 June 2013. https://www.r-statistics.com/2013/06/top-100-r-packages-for-2013-jan-may/.
13. ↑ "Welcome to the Tidyverse". Revolution Analytics. http://blog.revolutionanalytics.com/2016/09/tidyverse.html.
14. ↑ Wickham, Hadley (2014). "Tidy Data". Journal of Statistical Software 59 (10). doi:10.18637/jss.v059.i10.
15. ↑ "John Chambers Award Past winners". ASA Sections on Statistical Computing, Statistical Graphics. http://stat-computing.org/awards/jmc/winners.html.
16. ↑ "ASA names 62 fellows". https://www.amstat.org/newsroom/pressreleases/2015-ASANames62NewFellows.pdf.
17. ↑ "Kiwi wins prestigious international statistics award for his outstanding contributions to the profession". 26 October 2010. https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=12254723.

## External links

* On the web
* Bluesky
* Twitter/X
* GitHub
* Interviews
* Interview by Datascience.LA at UseR! 2014
* Interview by Yixuan Qiu (2013)
* Interview by Models are
* Talks and presentations
* Speaker Hadley Wickham Strata 2014 - O'Reilly Conferences, February 11 - 13, 2014, Santa Clara, CA
* Interview at Strata 2014 Illuminating and Wrong
* Ihaka Lecture Series 2017: Expressing yourself with R

Template:R (programming language)

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Visualization of technical information

Fields|

* Biological data visualization
* Chemical imaging
* Crime mapping
* Data visualization
* Educational visualization
* Flow visualization
* Geovisualization
* Information visualization
* Mathematical visualization
* Medical imaging
* Molecular graphics
* Product visualization
* Scientific visualization
* Software visualization
* Technical drawing
* User interface design
* Visual culture
* Volume visualization

Image types|

* Chart
* Diagram
* Engineering drawing
* Graph of a function
* Ideogram
* Map
* Photograph
* Pictogram
* Plot
* Schematic
* Skeletal formula
* Statistical graphics
* Table
* Technical drawings
* Technical illustration
* User interface

People|

* Jacques Bertin
* Stuart Card
* Thomas A. DeFanti
* Michael Friendly
* George Furnas
* Pat Hanrahan
* Nigel Holmes
* Christopher R. Johnson
* Gordon Kindlmann
* August Kekulé
* Manuel Lima
* Alan MacEachren
* Jock D. Mackinlay
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* Clifford A. Pickover
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* Karl Wilhelm Pohlke
* Adolphe Quetelet
* George G. Robertson
* Arthur H. Robinson
* Lawrence J. Rosenblum
* Ben Shneiderman
* Fraser Stoddart
* Edward Tufte
* Fernanda Viégas
* Ade Olufeko
* Howard Wainer
* Martin Wattenberg
* Bang Wong

Related topics|

* Cartography
* Chartjunk
* Computer graphics
* in computer science
* Graph drawing
* Graphic design
* Graphic organizer
* Imaging science
* Information graphics
* Information science
* Mathematics and art
* Mental visualisation
* Misleading graph
* Neuroimaging
* Patent drawing
* Scientific modelling
* Spatial analysis
* Visual analytics
* Visual perception
* Volume cartography
* Volume rendering

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