因为你没有给数据,https://blog.csdn.net/qq_52785473/article/details/122460588你可以直接看我的这篇博客,里面有相关例题和代码,你数据换一下就可以了,有什么问题可以私信我
这个就是用灰色预测模型预测GDP。参考博客"https://blog.csdn.net/wuli_dear_wang/article/details/80587650?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522165726696816781683955412%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=165726696816781683955412&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_positive~default-1-80587650-null-null.142^v32^pc_search_v2,185^v2^control&utm_term=%E7%81%B0%E8%89%B2%E9%A2%84%E6%B5%8B%E6%A8%A1%E5%9E%8Bmatlab&spm=1018.2226.3001.4187%22%E3%80%82%E8%BF%99%E9%87%8C%E8%BE%B9%E6%AD%A3%E5%A5%BD%E6%9C%89G%EF%BC%881%EF%BC%8C1%EF%BC%89%E7%9A%84MATLAB%E4%BB%A3%E7%A0%81.%E5%B8%A6%E5%85%A5%E6%95%B0%E6%8D%AE%E5%B0%B1%E8%A1%8C%E4%BA%86%E3%80%82%E7%A7%81%E8%81%8A%E8%81%94%E7%B3%BB%E6%88%91%EF%BC%8C%E6%88%91%E7%BB%99%E4%BD%A0%E5%81%9A%E4%B9%9F%E8%A1%8C%E3%80%82
你说的不够清楚,朋友