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Re: st: Any major syntax differences in Stata 13?
From
Richard Williams <[email protected]>
To
[email protected], "[email protected]" <[email protected]>
Subject
Re: st: Any major syntax differences in Stata 13?
Date
Wed, 12 Jun 2013 12:38:06 -0500
Putting stuff like
version 12.1
at the beginning of your scripts further reduces the likelihood of
having problems. Or, use the version prefix, e.g.
version 12.1: reg y x
In the past, I think some of the biggest problems have been with
user-written post-estimation commands. They expect ereturned results
like those from Stata version 9, and then, say, in Stata 12, the
ereturned results changed. In such instances you'll want to use
version control with the estimation command.
There have also been things like, say, function names changing, and
the old name won't work unless you use version control. Or, there
will be some tweak to the random number seed, and so even if you
specify the same seed you won't be able to reproduce earlier results
unless you use version control.
Whether any of this is happening in Stata 13, I don't know. But when
writing your own do and ado files, it is a very good idea to include
version statements just in case something does get changed in a later
version of Stata. And if you are doing anything that involves
generating random numbers, explicitly specify the seed if you want to
be able to exactly reproduce your results later.
At 10:14 AM 6/12/2013, Nick Cox wrote:
Throughout the history of Stata, there has been extraordinary
emphasis on _not_ breaking your previous scripts....
Nick
[email protected]
On 12 June 2013 16:01, Grant, Robert <[email protected]> wrote:
> Hi folks
>
> I am teaching with Stata 12 and expect some students to rush out
and get 13 straight away. Any differences in coding that I should be aware of?
>
> Robert Grant
> Senior Research Fellow in Quantitative Methods
> Center for Health & Social Care Research, St George's,
University of London & Kingston University
> Honorary Statistician, Princess Alice Hospice, Surrey
>
> [email protected]
> +44 (0)20 8725 0142
> http://tinyurl.com/helpwithstats
> http://robertgrantstats.wordpress.com
> http://www.animatedgraphs.co.uk
>
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>
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-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME: (574)289-5227
EMAIL: [email protected]
WWW: http://www.nd.edu/~rwilliam
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