R, Statistics, Data Science.
contains four dependent variables as follows: trunk girth at four years (mm × 100) extension growth at four years (m) trunk girth at 15 years (mm × 100) weight of tree above ground at 15 years (lb × 1000) root <- read.table('ROOT.DAT', col.names = c('Tree.Number', 'Trunk.Girth.4.Years',