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Re: st: using round time numbers on the x-axis of a stata graph


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: using round time numbers on the x-axis of a stata graph
Date   Sun, 22 Jan 2012 10:46:53 +0000

Here is some technique

. local start = clock("21 Jan 2012 00:00:00", "DMYhms")

. di "`start'"
1642723200000

. local finish = clock("22 Jan 2012 00:00:00", "DMYhms")

. local step = 1000 * 60 * 60

. ..., xtic(`start'(`step')`finish')

Let's also guess that you want some labels, but fewer, e.g.

local step2 = `step' * 3

. ..., xla(`start'(`step2')`finish', format(%tchh:mm))

Nick

On Sat, Jan 21, 2012 at 8:56 PM, Molly McMahon <mollyam@gmail.com> wrote:

> I have stata 12, and I have created a scatterplot with a time of day
> variable as the x-axis. The time variable is formatted as %tc,
> contains information for a single date, and times range from 00:00:00
> to 16:58:55.
> I would like the x-axis ticks to reflect even hours, i.e. 00:00:00,
> 01:00:00, 02:00:00, etc. and I cannot get this to work. Any assistance
> is much appreciated.
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