monthplot(x, type="l", labels=<<see below>>, xlab="",
ylab=deparse(substitute(x)))
sabl or
stl.
Missing values are not accepted.
"l" (the default)
means connected lines,
"h" means vertical lines (high density
plot) and
"p" means points.
frequency(x) is 12;
frequency(x) is 4;
1 to
frequency(x), for all other cases.
x.
The series
x is broken into
frequency(x) subseries, e.g.,
the January subseries, the February subseries,
etc .The plot shows variation about the midmean (25% trimmed mean)
of each subseries.
Cleveland, W. S. and Terpenning, I. J. (1982). Graphical Methods for Seasonal Adjustment. Journal of the American Statistical Association 77, 52-62.
fit <- sabl(hstart)
monthplot(window(fit$seasonal, end=end(hstart)))
monthplot(fit$seasonal, type="h",
main="Seasonal Component of Housing Starts")