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st: running marginsplots without rerunning margins again


From   Doug Hess <douglasrhess@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: running marginsplots without rerunning margins again
Date   Thu, 11 Aug 2011 09:02:04 -0400

Thanks to Richard and Scott. Scott's suggestion worked
perfectly...once I figured out that "foo" wasn't a command
abbreviation.

I'm not familiar with starting a command with the underscore (as in -
_retrun hold foo  - ), what is that underscore doing?

Likewise, I'm not familar with the colon after a command line (as in -
estimates esample: - ), what does that colon do there?

Thanks again.

-Doug

Date: Wed, 10 Aug 2011 21:12:57 -0500
From: Scott Merryman <scott.merryman@gmail.com>
Subject: Re: st: running marginsplots without rerunning margins again

It looks like you to save the contents of r() as well.

clear*
webuse nhanes2
regress bpsystol agegrp##sex
estimates save foo,replace
margins agegrp
_return hold foo

//other stuff
sysuse auto ,clear
regress price i.rep
margins rep

//return to marginsplot
webuse nhanes2,clear
est use foo
estimates esample:
_return restore foo
marginsplot


Scott

On Wed, Aug 10, 2011 at 10:03 PM, Richard Williams
<richardwilliams.ndu@gmail.com> wrote:

> I thought it would simply be a matter of using the -post- option of margins
> and the -est store- and -est restore- commands. To my surprise, though, the
> following produces an error at the end:
>
> clear all
> sysuse auto
> reg  price mpg i.foreign
> margins foreign, post
> est store margins1
> marginsplot
> reg  price mpg i.foreign  weight
> est restore margins1
> margins
> marginsplot
>
> The error is "previous command was not margins." But if you do -ereturn
> list-, it does say the last command was -margins-. I am surprised it doesn't
> work, and I wonder if this is a bug or if there is some good reason for
> this.
>

>> At 08:10 PM 8/10/2011, Doug Hess wrote:
>>
>> I just installed Stata 12 and am playing with the "marginsplot"
>> command. I am wondering how to run margins plot on a restored margins?
>> Can it? Complex margins commands can take a long time to run. Is there
>> a way to restore or use saved results from a complex running of
>> margins so that I can fiddle with the graph later?
>>
>> Come to think of it, how do I redisplay results from a margins command
>> after "restoring" a stored file or "using" a saved file. For
>> regression estimates you just type regress and it shows it. How is
>> this done for other saved files.
>
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