Although the help file seems not to mention it, -xi3- is by
Michael Mitchell and Phil Ender of UCLA, and -postgr3-
is by Michael Mitchell.
Neither appears to be a member of Statalist at present,
so I'd recommend them emailing them directly for support.
I've not used either program myself, being among the very
simple-minded souls whose needs are met by -xi-.
Nick
[email protected]
David Airey
> xi3 and postgr3 are very useful commands. These two command work
> together very well.
>
> But, has anyone tried graph options in postgr3? It does not
> seem to be
> implemented as in the previous version postgr which worked with xi2.
>
> I would very much like to see Stata Corp extend xi3 and
> postgr commands
> to xin and postgrn, where n reflects any desired level of
> interactions
> (for most people, third order interactions would be enough, but in
> experimental designs, the possibility of a few more should be
> considered). We have now been through 2 external parties developing
> similarly useful commands (i.e., desmat and xi3). Conceptually, I
> prefer xi3 and postgr3 because they work well together to
> present both
> statistics and graphical interpretations. Please make this
> wish part of Stata 9.
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