library(utils)
rforge <- "http://r-forge.r-project.org"
install.packages("estimate", repos=rforge, dependencies=TRUE)
A version of this package for your version of R might be available elsewhere,
see the ideas at
https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages
Warning in install.packages :
无法在貯藏處http://r-forge.r-project.org/bin/windows/contrib/4.2%E4%B8%AD%E8%AF%BB%E5%86%99%E7%B4%A2%E5%BC%95:
cannot open URL 'http://r-forge.r-project.org/bin/windows/contrib/4.2/PACKAGES'
无法安装安装estimate包,求解决方案