Martijn Tennekes
Data Scientist
Maastricht, Limburg, Netherlands
Summary
👤
Senior🎓
Top SchoolMartijn Tennekes is a data scientist at Statistics Netherlands with 14 years of experience specializing in data visualization, spatial data analysis, and big data methods, particularly for official statistics. He blends an artistic sensibility for beautiful, harmonious maps with rigorous methodology for using sensor and mobile phone data to produce reliable statistical outputs. A prolific R user and package author, Martijn created widely used tools like tmap, tabplot, and treemap to make thematic, tabular, and hierarchical visualizations accessible. His research and teaching span color use in charts, visualization of complex spatial hierarchies, and practical applications of big data at the Center for Big Data Statistics. Martijn’s work includes a visiting researcher stint at Oxford e-Research Centre and contributions to improving tmap’s legend, facetting, and color-scale features on GitHub. Based in Maastricht, he combines a PhD-level analytical background in game theory with hands-on software development to turn large, messy datasets into clear visual stories.
14 years of coding experience
Doctor of Philosophy (Ph.D.), Game Theory, Ph.D., Doctor of Philosophy (Ph.D.), Game Theory, Ph.D. at Maastricht UniversityOperations Research, LNMB Certificate, Operations Research, LNMB Certificate at Dutch Network on the Mathematics of Operations Research (LNMB)
Dutch, English
Stackoverflow
2,011reputation
97kreached
39answers
12questions
r
top-5%
Github Skills (10)
data-manipulation10
geographical-information-system10
gis10
r10
choropleth6
tmap6
ggplot6
leaflet6
popup6
treemap6
Programming languages (9)
Github contributions (5)
r-tmap/tmap
Nov 2013 - Jan 2023
R package for thematic maps
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 reviews, 1511 commits, 112 PRs in 9 years 3 months
Contributions summary:Martijn primarily contributed to the R package "tmap" by merging branches and resolving conflicts in the `DESCRIPTION` file. Their work involved modifying several files to enhance functionality, with a focus on improvements related to the creation and display of thematic maps. Specifically, the user implemented features, such as improvements in grid lines, legend labels, facetting, and color scales.
r-packagethematic-mapschoropleth-mapsvisualisationspatial
mtennekes/tmap-workshop
May 2018 - Oct 2020
Contributions:20 commits, 17 pushes, 1 branch in 2 years 5 months
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