Aggregate points to a fishnet in R (sf)

In this video we create a fishnet grid over a set of points. We then use that grid to aggregate and map our points. crimemapping R package / lessons: https://github.com/mpjashby/crimemapping/ R code: https://gist.github.com/JosiahParry/d0f244093eb700215d2a19e807022b60 0:00 - intro 0:48 - making an sf object 2:44 - a first grid 4:40 - making the fishnet 8:55 - aggregating to the fishnet 10:55 - mapping 12:00 - making a function