vis_compare, like the other
vis_* families, gives an at-a-glance ggplot
of a dataset, but in this case, hones in on visualising two different
dataframes of the same dimension, so it takes two dataframes as arguments.
The first dataframe to compare
The second dataframe to compare to the first.
ggplot2 object displaying which values in each data frame are
present in each other, and which are not.
# make a new dataset of iris that contains some NA values aq_diff <- airquality aq_diff[1:10, 1:2] <- NA vis_compare(airquality, aq_diff)