Best Python Libraries For: Machine Learning
Best Python Libraries For: Machine Learning 6. Scikit-Learn Stars: 42500, Commits: 26162, Contributors: 1881 Scikit-learn is a Python module for machine learning built on top of SciPy and is distributed under the 3-Clause BSD license. 7. XGBoost Stars: 19900, Commits: 5015, Contributors: 461 Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Sc..
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[chat GPT]코호트분석 mysql(월별/주별, 6개월기간)
1. 월별과 주별 코호트 분석 및 리텐션율을 모두 구하는 MySQL 쿼리를 아래에 제시합니다. 먼저, 월별 코호트 분석과 리텐션율을 구하는 쿼리입니다: SELECT DATE_FORMAT(join_date, '%Y-%m') AS Cohort, COUNT(DISTINCT user_id) AS CohortSize, COUNT(DISTINCT CASE WHEN DATE_FORMAT(activity_date, '%Y-%m') = DATE_FORMAT(join_date, '%Y-%m') THEN user_id END) AS Month1, COUNT(DISTINCT CASE WHEN PERIOD_DIFF(DATE_FORMAT(activity_date, '%Y%m'), DATE_FORMAT(join_date, '%Y%..
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