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Re: st: error bars in marginsplot

From   Maarten Buis <>
Subject   Re: st: error bars in marginsplot
Date   Sun, 16 Sep 2012 10:05:13 +0200

On Sat, Sep 15, 2012 at 6:34 PM, Jordan Silberman wrote:
> Is it possible to have the marginsplot command display error bars that
> are 1 standard error wide, rather than displaying error bars that are
> the full 95% CI?

We can use the -level()- option for that. The trick is to find the
level that corresponds with 1 standard error. This is
normal(1)-normal(-1). Since the -level()- option works in percentages,
we need to multiply that by 100, and since it only takes two decimal
places after the decimal point, we need to use the -round()- option.
Putting all this together:

*------------------ begin example ------------------
sysuse auto, clear
reg price i.rep78
margins, over(rep78)
marginsplot , ///
*------------------- end example -------------------
(For more on examples I sent to the Statalist see: )

Hope this helps,

Maarten L. Buis
Reichpietschufer 50
10785 Berlin
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