* Database sizing
  This:  call_prettify(tot_db)
  That:  call_prettify(tot_db)
  That:  call_prettify(tot_dc)
  That:  call_prettify(tot_dcccccc)
  That:  call_prettify(tot_dcccccq)
  That:  call_tot_db()

#+RESULTS: tot_db
: 779408.14

#+RESULTS: tot_dc
: 779408.14

#+RESULTS: tot_dcccccc
: 779408.14

#+RESULTS: tot_dcccccq
: 779408.14

#+NAME: prettify
#+BEGIN_SRC R  :results value :exports none :var tot=512
gb = paste(round(tot/1024,1),"GB")
#+END_SRC