Data and code for the 2025 Jiang et al. paper

This repository contains all data and code necessary to replicate the analyses reported in the manuscript. The dataset includes contributor-level information, pull request records, and activity events. The code files provide scripts for data preprocessing, statistical modeling, and figure generation. Detailed instructions are included in the README.md file to ensure reproducibility.本代码库包含复现该论文手稿中所述分析所需的全部数据与代码。本数据集涵盖贡献者层级信息、拉取请求（pull request）记录及各类活动事件。代码文件提供了数据预处理、统计建模与图表生成的相关脚本。README.md 文件中包含详细操作指南，以确保研究结果可被复现。