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Observable

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Observable is my platform of choice for starting any dataviz project. I create a new notebook to experiment and immediately see the results. I tend to build modular and reusable notebooks.

Find my 500+ public notebooks at https://observablehq.com/@severo.

Works

Shifting Winds of French Politics: Mapping Right and Left Shifts in the 2024 vs. 2022 Elections. — Shifting Winds of French Politics: Mapping Right and Left Shifts in the 2024 vs. 2022 Elections.
Personal projects 2024 Context 2D D3.js Elections JavaScript Observable

Distribution of votes along the left-right scale in France, 2024 — Distribution of votes along the left-right scale in France, 2024
Personal projects 2024 Elections JavaScript Observable Plot

Diff of two Parquet files on Hugging Face — Diff of two Parquet files on Hugging Face
Hugging Face 2025 Hyparquet Observable Parquet

Tool to find regional Foursquare places data files on a map — Tool to find regional Foursquare places data files on a map
Personal projects 2025 Map Observable Plot

Review about grid cartograms — Review about grid cartograms
Personal projects 2018 Observable Writing

Diff of two Parquet files on Hugging Face — Diff of two Parquet files on Hugging Face
Hugging Face 2025 Hyparquet Observable Parquet

Classification of a cycling race, highlighting the performance of young Seixas — Classification of a cycling race, highlighting the performance of young Seixas
Personal projects 2025 Observable Plot Sport Wikidata

Evolution of the extreme right vote in France, 2022-2024 — Evolution of the extreme right vote in France, 2022-2024
Personal projects 2024 Context 2D Elections JavaScript Observable

Wind effect with particles flowing to the right or left — Wind effect with particles flowing to the right or left
Personal projects 2024 Context 2D D3.js JavaScript Observable

Evolution of voter participation in France, 2022-2024 — Evolution of voter participation in France, 2022-2024
Personal projects 2024 Context 2D Elections JavaScript Observable

Dashboard about the activity of the Observable forum — Dashboard about the activity of the Observable forum
Personal projects 2024 Observable Plot