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Re: st: question about ICE in STATA 9

From   Clive Nicholas <>
Subject   Re: st: question about ICE in STATA 9
Date   Wed, 19 Aug 2009 18:48:23 +0100

Woolton Lee wrote:

> I am getting an error message after executing ICE in STATA 9.  I am
> using the following syntax.


> The error I am getting is the following,
> Imputing postfile: variable mdrk120000_mean already exists
> r(110);
> What is confusing is that I don't have a variable mdrk120000_mean in
> the dataset I am running the imputation on.  I realize this is part of
> the algorithmn that ICE uses but I am not sure what I can do about it.

You failed to mention that -ice- is a user-written routine by Patrick
Royston, and is available from SSC. Patrick is not a member of
Statalist, so if -help ice- doesn't help you at all, you should
contact him offline.

Clive Nicholas

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