Used with plotSlopes if plotx is discrete. This is not currently exported.
se.bars(x, y, lwr, upr, width = 0.2, col, opacity = 120, lwd = 1,
lty = 1)The x center point
The fitted "predicted" value
The lower confidence interval bound
The upper confidence interval bound
Thickness of shaded column
Color for a bar
Value in c(0, 254). 120 is default, that's partial see through.
line width, usually 1
line type, usually 1