Cannot install R-forge package using install.packages

Question

This, question, is, asked, over, and, over, and, over, on the R-sig-finance mailing list, but I do not think it has been asked on stackoverflow.

It goes like this:<

Answer 1

Alternatively, you can install the particular package from GitHub, if it has a repo at GitHub.

I ran install.packages('ggfortify'), and got

Warning message: “package ‘ggfortify’ is not available (for R version 3.3.2)”

ggfortify was the GitHub repo for the same package.

The devtools library allows you to install a package from GitHub directly with install_github('username/repo').

library(devtools)
install_github('sinhrks/ggfortify')