plot_logs: Plot download stats.
A dirty wrapper function to plot the download stats obtained by running
data.table that's obtained from running
At the moment, this is a dirty function. That is, it detects the column names and the number of columns to find out if
dependency was set to
TRUE or not. If the downloads for dependent packages doesn't exist, it plots just the total downloads for all the packages specified.
If the column for downloads from dependent packages were present, it provides two plots (stitched together). The first one provides the number of times packages were downloaded directly (meaning not through dependencies), and the second one provides the number of downloads due to dependencies alone.
## Not run:
# dt = read_logs(start = as.Date("2014-01-01"),
# end = as.Date("2014-01-31"),
# path = "./", dir="cran-mirror",
# verbose = TRUE)
# dt_s = stats_logs(dt)
# ## End(Not run)