population migration.zip

Baidu Migration Big Data provides indices of migration scale (including an in-migration scale index and an out-migration scale index) recorded in days for 365 cities in China and the percentage of in-migration from a particular city to the total in-migration from that city for each city's in-migration sources.百度迁徙大数据（Baidu Migration Big Data）提供了中国365座城市按日统计的人口迁徙规模指数（包含迁入规模指数与迁出规模指数），同时涵盖各城市的迁入来源构成数据：即来自某一特定城市的迁入人口占该城市总迁入人口的百分比。