• Toggle code and console
  • ctrl + 1, 2, etc.
• Maximize windows
  • ctrl + shift + 1, 2, etc.

• alt+ vertical selection

• alt+L to fold
• shift+alt+L to unfold

• Rename scope (ctrl+shift+alt+m)
  • Compare to ctrl+F replace
• Insert arrow (alt+-)
• Insert pipe (ctrl+shift+m)
• Insert section name (ctrl+shift+r)
  • multi level outlines
• Format indents (ctrl+i)

Tidyverse packages can often read directly from .zips

• csv
• shp
• gdb

• matrittr %$% nrow(x)
• Equal to base R df %>% with(nrow(x))

• map(df, ~ {ggplot() + geom_point() })
• list2env(list, envir = .GlobalEnv)

• select (contains vs matches)
  • contains: a literal string “.zip”
  • matches: a regex “\.zip$”
• garbage collection gc()
  • frees RAM
  • one step further than rm()