
Prepare Census Data sample for use.

  * ReadDataDict.Rmd : read the census data dictionary into machine readable for, write as: ../data_dict.csv
  * LoadPUMSAll.Rmd : load all census data into databse.
  * LoadPUMS.Rmd : extract a weighted person based sample with matching households, write  ../ss16pus.RDS and ../ss16hus.RDS .
  * LoadPUMS_h.Rmd : extract a weighted person based sample with matching households, write ../ss16hus_h.RDS and ../ss16pus_h.RDS.
