From RStudio's CRAN Mirror http://cran-logs.rstudio.com/
countryPackage(country = "HK", date = NULL, all.filters = FALSE,
ip.filter = FALSE, triplet.filter = FALSE, small.filter = FALSE,
sequence.filter = FALSE, size.filter = FALSE, sort = TRUE,
memoization = TRUE, multi.core = TRUE)
Character. country abbreviation.
Character. Date. "yyyy-mm-dd". NULL uses latest available log.
Logical. Master switch for filters.
Logical.
Logical.
Logical.
Logical. Set to FALSE.
Logical. Set to FALSE.
Logical. Sort by download count.
Logical. Use memoization when downloading logs.
Logical or Numeric. TRUE
uses parallel::detectCores()
. FALSE
uses one, single core. You can also specify the number logical cores. Mac and Unix only.