March 2025
Intermediate to advanced
308 pages
7h 21m
French
Content preview from DuckDB : opérationnel
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Chapitre 5. Réalisation d'une EDA avec DuckDB
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À ce stade, tu devrais avoir une bonne maîtrise des principes de base de DuckDB. Tu as vu comment charger tes bases de données DuckDB à partir de données stockées dans des formats de fichiers tels que CSV et Parquet, et tu as également appris à les charger à partir de serveurs de bases de données tels que MySQL. Dans ce chapitre, nous allons appliquer DuckDB à des scénarios pratiques, en l'utilisant pour effectuer des analyses de données exploratoires.
L'AED est une approche qui permet d'analyser et de visualiser des ensembles de données afin de résumer leurs principales caractéristiques. L'objectif principal de l'AED est de comprendre les modèles, les tendances et les relations au sein des données. Dans l'AED, nous utilisons souvent les techniques suivantes sur nos données :
- Résumé des données
Utilise les statistiques descriptives (telles que moyenne, médiane, écart-type, et plus) pour comprendre la distribution de l'ensemble de données.
- Visualisation des données
Utilise des bibliothèques telles que Matplotlib et Seaborn pour tracer divers types de graphiques (tels que des diagrammes à barres, des diagrammes circulaires, et plus encore) afin d'inspecter visuellement la distribution des données et les relations entre les différents types de données.
- Identification des tendances
Identifie les modèles, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.