Buzz Burhans
> You correctly interpreted my attempted task, and I will
> tuck your solution
> away for another similar situation. I have a couple of
> questions about
> your solution. What I needed was a way to mark (by an xline) the
> occurrence of, variably, one, two, or three events on the x
> axis of an
> xtline graph. It looks like the line I reproduce below
> would give me only
> a single xline per xtline graph, is that correct?
No. You should get up to 3 lines, by virtue of the
-forvalues- loop. Here's the code again:
levels id, local(levels)
foreach l of local levels {
// next line clears macro
local events
forval i = 1/3 {
su event`i' if id == `l', meanonly
if r(max) < . local events "`events'`r(max)' "
}
if "`events'" != "" {
xtline response if id == `l', ///
subtitle(panel `l') xline(`events')
}
else xtline response if id == `l', subtitle(panel `l')
more
}
The -forvalues- loop loops over -event1- to -event3-.
Of course, your variable names may well be something else,
and may not have such structure.
Let's say -engaged-, -married-, -firstchild-, although
as I recall you deal with cows, so the events might
differ. Anyone, let's stick with that case, which
you can handle this way:
local events
foreach v of var engaged married firstchild {
su `v' if id == `l', meanonly
if r(max) < . local events "`events'`r(max)' "
}
I didn't get as far as thinking
about how you would distinguish the lines on
the graph.
> And would you then
> continue the three options as overlayed graphs to create a
> singel graph with the three possible lines?
>
> the line that looks like it grabs a single event to me is:
>
> > if r(max) < . local events "`events'`r(max)' "
>
No. As said, it's in a loop.
> Second question, not at all a priority. Is there a way to
> use mkmat to
> accomplish this? That was where I was headng when I
> realized I could use
> recast(rcap) to create capped lines at each event
> occurrence and mark them
> that way.
Sorry, I have no idea how -mkmat- would connect to this.
I think you need to spell out why and how you think
it is needed.
Nick
[email protected]
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