You can find an updated version of this app at https://github.com/rstudio/shiny-examples/tree/master/063-superzip-example.

NOTE: Requires Shiny 0.9.0 or later.

See a version of it live at https://jcheng.shinyapps.io/superzip/

You can run this demo with:

if (!require(devtools))
  install.packages("devtools")
devtools::install_github("jcheng5/leaflet-shiny")
shiny::runGitHub("superzip", "jcheng5")

Data compiled for Coming Apart: The State of White America, 1960–2010 by Charles Murray (Crown Forum, 2012). This app was inspired by the Washington Post's interactive feature Washington: A world apart.