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Evolution des prix de l'immobilier en France - DVF à l'iris
Data Visualizationfr20 nov. 2025

Evolution des prix de l'immobilier en France - DVF à l'iris

En croisant les données DVF (Demandes de Valeurs Foncières) maintenant disponibles en open data, nous avons construit ce dashboard.

#Business Intelligence#Dataviz#Spatial
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Spatial queries in DuckDB with R-tree and H3 indexing
Databaseen4 mars 2025

Spatial queries in DuckDB with R-tree and H3 indexing

This Python notebook explores the use of two indexing techniques, R-tree and H3, for performing spatial queries in DuckDB.

#Python#DuckDB#Spatial
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Plotting population density with datashader
Data Visualizationen21 mars 2022

Plotting population density with datashader

In this short post, we are using the Global Human Settlement Layer from the European Commission: The downloaded file has a worldwide resolution of 250m…

#Dataviz#Python#Spatial
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Python Spatial Join with GeoPandas (and GEOS)
Geospatial & Graphsen10 sept. 2021

Python Spatial Join with GeoPandas (and GEOS)

The purpose of this post is to perform an "efficient" spatial join in Python. What is a spatial join?

#Datascience#Python#Spatial
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Benford's law and the population of french cities
Geospatial & Graphsen20 janv. 2021

Benford's law and the population of french cities

In this Python notebook, we are going to look at Benford's law, which predicts the leading digit distribution, when dealing with some real-world…

#Datascience#Python#Spatial
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Lunch break, plotting excess death in french department zones with Python
Data Visualizationen1 juin 2020

Lunch break, plotting excess death in french department zones with Python

Daily deaths data are provided by INSEE - the national institute of statistics and economic studies.

#Datascience#Dataviz#Python
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