Timeline graph for presentation

[LarsFolkestad]

Hello
I just wasted a day trying to get excel to make me a timeline. I have failed.
I have four registries for every registry there are 3-4 dates of interest.
So i have the following
Reg_var start_date date1 date2 end_of_study
Is it possible to create time lines using Stata that indicate start date, dates of interest and end_of_study.

I what them to be horisontal lines with a point indicating a date of interest. It would be lovly if i could get different color on the connecting lines from one point to the next.

Does this make sense?


Hope i can crowdsource me a Stata do file here.

Lars

[William Lisowski]

Can't help with your Stata graphics, but the attached Excel workbook would seem to be a start at what you wanted.

[Tim Morris]

Lars

You should be able to get what you're describing with rspike. If Reg_var is coded say 1–4, your graph could be something like:

twoway ///
  (rspike start_date date1 Reg_var, horizontal lcol(red)) ///
  (rspike date1 date2 Reg_var, horizontal lcol(yellow)) ///
  (rspike date2 end_of_study Reg_var, horizontal lcol(blue))

The lines will be pretty thin so you'll probably want play with something like lwidth(vvthick).

If you want a point at each date as well as the lines joining them you would do this for date1 by adding this to the twoway command:

(scatter Reg_var start_date)

Likewise for other dates.

Tim

[LarsFolkestad]

Your right Tim. That was just what i wanted.
Du you know how i can get the verticAl Line that indicates zero in a X-Y system to go through a certain date fx 1977?

[Rich Goldstein]

sounds like you want the "xline" option; see

help added_line_options