When I'm trying to install packages, I typed in (quantmod lubridate xts Rcpp RcppArmadillo reshape2 ggplot2 scales grid coda) and I got these errors:
Warning in install.packages :
package ‘grid’ is not available (for R version 4.0.2)
Warning in install.packages :
package ‘grid’ is a base package, and should not be updated
Can anyone help me to solve the problem? I just started learning R, so I basically know nothing about it, can you be specific as you can? Thank you!