Missing Data Line Type?
On 5/24/05, khobson at fd9ns01.okladot.state.ok.us
<khobson at fd9ns01.okladot.state.ok.us> wrote:
I have a general question. Is there a setting that can be used for a multiple line type? The situation is that I want a solid line between x and y points but if the y point is missing, I want a dashed line type to the next point. In other words, if point 1 to 2 exists, make that line solid, otherwise, make it dashed up to the next existing x/y point.
plot(approx(x), type = "l", lty = 2) lines(x)
Additionally, what plot type would you recommend for a plot with two Y points per X? The two points would be joined by a vertical line. The average of the two is the dual type line described above.
See ?segments . Also you might be able to use directly or else scavenge code from plotCI in package gplots (in the gregmisc bundle) or plotOHLC in package tseries.