A portfolio project using Python, SQL and machine learning to explore how measurable audio characteristics relate to track popularity and to build a baseline prediction model. For a credible research ...
SQL, Python and Power BI analysis of telecom customer churn: drivers, prediction model, and revenue impact - Ibrahim4333/customer-churn-analysis ...
Malek Damiri shows how to backtest a customer health score in SQL: point-in-time snapshots, churn by band, and AUC against a ...
NRR is easy to inflate by accident. Runnable SQL for net and gross revenue retention, the retention bridge, a monthly trend, and two common mistakes to avoid.
The author may receive a commission for purchases made through the products or services introduced.This is written for managers who delegate Excel sales data aggregation to their subordinates. It addr ...
在 Rails 开发中，经常需要在 console 里“随手翻一条记录看看”——比如抽查 events 表里某条数据长什么样。本文讲解一个巧妙而简洁的方案：对目标表按随机函数排序，再取第一条；并重点说明 ...
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