Is there any way to add packages that knitr doesn't know? I use knitr in Overleaf, and I need to use packages "pacma", "nonlinearTseries" and "RHRV". But when I tried to install them it didn't work. I tried do add them with library function but it get me an error massage.
library("RHRV")
Error in library("RHRV"): there is no package called ’RHRV’