# st: RE: Graphics Questions

 From "Nick Cox" To Subject st: RE: Graphics Questions Date Mon, 21 Feb 2005 17:55:31 -0000

```Every other month is either a set of
odd numbers or a set of even numbers,
depending on the start point.

For example,

levels month if mod(month,2) == 0, local(show)

picks up the even months, which will
be Jan Mar May Jul Sept Nov, given
Stata's origin 0 = Jan 1960.

So you can go

... xla(`show', ang(v) labsize(vsmall))

Every third month can be done with a similar
trick.

Even more direct is just to use a numlist

... xla(251(3)349, ang(v) labsize(small))

but that requires either working it out
by hand or something else previously.
It could in turn be automated.

Ulrich Kohler wrote an -egen- function
as a helper for the second problem.

. ssc desc gmlabvpos

Nick
n.j.cox@durham.ac.uk

Eric G. Wruck

> I basically I have a graph I like of stock return indices over time.
> However, my efforts to tweak the graph a bit have been unsuccessful
> Specifically,
>
> (1) The x-axis is a month-year variable (%dm-Y).  I am using
> xlabel(#48 , angle(vertical) labsize(vsmall)) to get every month on
> the x-axis.  I'd like to specify a rule such as every other month or
> every third month.  Is there any easy way to do this for a variable
> that is a date?
>
> (2)  I also have a string variable called news that I am using as a
> marker label for one of the stock indices.  The problem is that
> sometimes the text is obscured by the graphed lines.  Sometimes, I
> would want the text to appear at 6 o'clock, other times midnight,
> etc.  I thought I could do this by inspection & create multiple news
> variables that I could use as multiple labels  -- one variable might
> be for news events that I want to appear at 6 o'clock, another news
> variable for events that I want to appear at midnight, etc.  First of
> all, I don't know whether this can be done -- can it?  And secondly,
> it seems rather primitive.  Is there an easier way, one not requiring
> this sort of intervention?
>
> Thanks very much.
>
> Eric
>
> --
>
> ===================================================
>
>         Eric G. Wruck
>         Econalytics
>         Columbus, OH  43209
>
>         ph:      614.231.5034
>         cell:    614.327.4182
>         fax:     614.231.5039
>         eFax:    614.573.6639
>         eMail:   ewruck@econalytics.com
>         website: http://www.econalytics.com
>
> ====================================================
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```