Re: st: midiagplots for mi impute chained command: multiple imputation in stata

[Clyde Schechter <clyde.schechter@gmail.com>]

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Linda O'Keeffe is getting an error message:

_0_Prepregnancy_alcohol_consumption invalid name

after running -midiagplots-.  She interprets this as "The results
appear to be telling me that Prepregnancy_alcohol consumtion is an
invalid name."

I haven't used -midiagplots- myself, but I think I know what is going on anyway.

While her original variable, Prepregnancy_alcohol_consumption is a
perfectly good variable name, it appears that -midiagplots- is
creating some other variable by prefixing _0_ to that, which puts the
result over the 32 character limit.  I suspect if she -rename-s the
variable to something short enough to tolerate a 3 character prefix
she'll be OK.

I've encountered this kind of problem in other user-written (including
self-written) ado-files that create new variables that way.

Hope this helps.

Clyde Schechter
Department of Family & Social Medicine
Albert Einstein College of Medicine
Bronx, NY, USA
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