R: 2 functions with the same name in 2 different packages

Question

I need to load to R packages : tseries and chron

Both have a function named is.weekend

I always have in my environment the function from the second package I

Answer 1

library(chron)
is.weekend.chron <- is.weekend
library(tseries)

then you can call is.weekend for the tseries version or is.weekend.chron for the chron version