What is the name of this visualisation?

I am trying to figure out the name of this plot that has bar chart on top and lollipops on the bottom which show the inter-relationship of the different categories for the variable of interest.

If you could also suggest any R packages for this would be amazing!!

This is UpSet plot, an alternative to Venn diagram where you have many categories/sets and very difficult to visualize number of individuals common between sets or of particular intersections. The rows generally represent the sets and the columns or bars indicate intersection size. If a set is not part of the intersection, a light gray circle or just empty white cell is shown. So, the vertical line connecting sets indicates the column-wise relationships between sets. For example in your plot, considering the first bar from left indicates there are 670 individuals that are Adult, Male, not survived, and with crew class. Likewise, the second one indicates that there are 387 individuals that are Adult, Male, not survived and with third class. On the left side you see the number of individuals from each Set, of which for example 95.05% or 2092 individuals are adult. There are many packages in R that are capable of drawing UpSet plots. for example, UpSetR or ComplexUpset. Hope it could helps

An option could be using the gg_miss_upset function from the naniar package which makes it possible to visualize missing data patterns across your data like this:

library(naniar)
gg_miss_upset(riskfactors)

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