segmented (version 2.2-1)

lines.segmented: Bars for interval estimate of the breakpoints

Description

Draws bars relevant to breakpoint estimates (point estimate and confidence limits) on the current device

Usage

# S3 method for segmented
lines(x, term, bottom = TRUE, shift=FALSE, conf.level = 0.95, k = 50, 
    pch = 18, rev.sgn = FALSE, .vcov=NULL, .coef=NULL, ...)

Details

lines.segmented simply draws on the current device the point estimates and relevant confidence limits of the estimated breakpoints from a "segmented" object. The y coordinate where the bars are drawn is computed as usr[3]+h if bottom=TRUE or usr[4]-h when bottom=FALSE, where h=(usr[4]-usr[3])/abs(k) and usr are the extremes of the user coordinates of the plotting region. Therefore for larger values of k the bars are plotted on the edges. The argument rev.sgn allows to change the sign of the breakpoints before plotting. This may be useful when a null-right-slope constraint is set.

See Also

plot.segmented to plot the fitted segmented lines, and points.segmented to add the fitted joinpoints.

Examples

## See ?plot.segmented