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We all have used GROUP BY, but do you know CUBE? For example, if I have a table of user

Faster big-data analysis workflows with Vaex

𝙍𝙊𝙇𝙇𝙐𝙋 generates extra rows that represent the subtotals. For example… To get the sum of spending of each user, you typically

It is the cartesian products of both tables, if you're a math nerd. 📌 Syntax: 𝚂𝙴𝙻𝙴𝙲𝚃 * 𝙵𝚁𝙾𝙼 𝚝𝚊𝚋𝚕𝚎_𝟷 𝙲𝚁𝙾𝚂𝚂 𝙹𝙾𝙸𝙽 𝚝𝚊𝚋𝚕𝚎_𝟸 Note that there is no need

Here's a quick implementation of supervised learning, the k-nearest neighbor (KNN) classification algorithm. To get you up to speed, the

Simple steps for better analytics