gm.tscol2 make a bar plot in time serie format. The difference between gm.tscol2 and gm.tscol
is possibility to select serie color.
Graphic models function family make graphic creation easy, is recommended for new programers,
they have less and easyful parameters then p.tscol but the graphic customize is more limited.
The data don't need be a ts object.
# NOT RUN {v=data.frame("x"=seq.Date(as.Date('2020-01-01'),
to = as.Date('2020-04-01'),by='month'),"y"=c(5,3,7,2))
gm.tscol2(v,1,2,title="Simple example",ntimes=3)
# }