version-update

version 1.4

date: 2020-07-27

  1. add numeric.nms(), factor.nms(), character.nms(), and name.n() to get numeric names, factor names, character names and names with unique number values n.
  2. add model.data() to extract data from model
  3. add dump.it() to make dump variable names

version 1.3

date: 2020-06-30

  1. simplify codes in Replace_ex() function.
  2. add join_inner(), join_full(), join_left(), join_right(), join_out()