anchor.diff:  knitr
   ko
   kr
  +kriging
  +kurtosis
   lbzip
   learnr
   lexicographically
  
positive.code: processx
  programmatically
  prs
  pthread
  pubkey
  purrr
  px
  Rademacher
  rchk
  rcpp
  
negative.code: rsconnect
  rstd
  rstudio
  rstudio’s
  rstudioapi
  rticles
  rtools
  ru
  runnable
  sansfont
  scedastic
  scedasticity
  searchability
  setspace
  sha
  