0120-3916 0120-3916 S0120-39162021000100147 10.17227/rce.num81-7530 Colombia Colombia Colombia Colombia 00 04 2021 00 04 2021 81 147 169

2008 66 146 146 57-83 2009 2014 40 1 1 25-39 2008 8 2 2 134-48 2017 125 3 3 761-97 2008 3 6 6 425-53 2018 72 304-13 2011 4 2 2 55-62 2010 46 160 160 48-72 2008 7 1 1 199-215 2005 2017 10 2017 2017 75-81 2007 2016 53 53 135-61 2016 53 1 1 1-18 2006 17 1 1 1-27 2000 26 15-29 2012 2011 36 1 1 21-41 2004 9 3 3 1-10 2006 3 5 5 69-90 2013 2006 28 113 113 38-63 2009 7 3 3 1053-72 2016 2011 14 1 1 51-65 2011 8 2 2 120-7 2017 28 54 54 235-51 2017 33 1-22 2007 2015 57 5 5 384-414 2017 65 98-105 2015 51 240-51 R Development Core Team 2008 2012 23 23 81-91 2013 13 1 1 1-24 2012 154 2002 2014 7 5 5 41-50 2018 5 3 3 648-58 2016 12 2 2 148-65 1999 2001 17 1 1 75-80 2018 45 1 1 156-76 2007