1.安装旧版R包:
1. 找到旧版包:
https://cran.r-project.org/src/contrib/Archive/
2. 更改代码中的地址
1 > packageurl <‐ "https://cran.r‐project.org/src/contrib/Archive/mnormt/mnormt_1.5‐7.tar.gz"
2 > install.packages(packageurl, repos=NULL, type="source")
https://cran.r-project.org/src/contrib/Archive/
1 > packageurl <‐ "https://cran.r‐project.org/src/contrib/Archive/mnormt/mnormt_1.5‐7.tar.gz"
2 > install.packages(packageurl, repos=NULL, type="source")