How to determine if date is a weekend or not (not using lubridate)

Question

I have a vector of date objects (yyyy-mm-dd) and I want to determine if any of them are on weekend or not. Is there a function that can determine this straighta

Answer 1

I put @AnandaMahto's suggestion here rather than a comment:

library(chron)
x <- seq(Sys.Date()-10, Sys.Date(), by = 1)
x[is.weekend(x)]

## [1] "2014-10-11" "2014-10-12" "2014-10-18"