search

hadley / r4ds

R for data science: a book
http://r4ds.hadley.nz
Other
4.59k stars 4.22k forks source link

19.5.3 Rolling joins #1683

Open nealxun opened 2 months ago

nealxun commented 2 months ago

Chapter 19.5.3 Rolling joins, figure 19.16, if the join condition is specified as join_by(closest(key <= key)), should x3 3 matches y3 4, since 3 <= 4?