Novice R: Joins

[cwickham]

Joins has been removed from the Data Manipulation section.

Need to think about where this will go and what else should be covered.

Relevant comments from review of merely-useful/merely-useful.github.io#137:

I would be inclined to introduce append/concat functionality (I think bind_row/bind_col in dply?) before joins since these are simply adding rows or columns which I think is simpler to understand than adding based on the values in a common column.
-- @joelostblom

How important is it to describe these other joins? I personally don't use many other than left_join and full_join and often struggle with the logic of the other joins. Would it be better to simply say "there are other joins out there, check out the cheatsheet/linked tutorial if you want to learn more, but we won't cover them more here". Thoughts?
-- @lwjohnst86

does anti_join also returns rows from right with no match from left?
-- @gvwilson

[cwickham]

Cool CC animated gifs: https://github.com/gadenbuie/tidyexplain

[joelostblom]

Cool CC animated gifs: https://github.com/gadenbuie/tidyexplain

Wow those are super useful!