Re: st: prvalue and loop rest(grmean)

[Richard Williams <richardwilliams.ndu@gmail.com>]

At 03:21 AM 11/3/2011, Tobias Schlager wrote:
> Dear Richard
>
> Sorry, for too briefly explaining my problem. I think that I am running
> into two problems in doing my analysis.
>
> First, I would like to use the conditional mean depending on all possible
> values that I have for x. However, grmean does not work at all, probably
> because I have 3 values that are run through the equation (x, x^2, x^3).
> All of them should be varied to account for the cubic effect. Probably
> that is why grmean is not working...
> So, what I try to do is vary the means of all other variables, depending
> on the value of x, as otherwise unrealistic combinations would be the
> result. (for instance some of the variables are always high or always low,
> depending on the value of x).
> Second part of the problem appears to be that I might have values that are
> between 4 and 5 for instance. However, from what I know, grmean is only
> the group mean, and can only be assigned to full numbers like 4 or 5. The
> result is that a lot of cases are left out in the analysis.
I'm guessing you just need to compute and assign the mean values 
yourself. You don't have a small number of groups, so maybe you can 
round the numbers and then compute the means, e.g. compute the mean 
of vars for those whose X values range between 4.51 and 5.49.

-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu
WWW:    http://www.nd.edu/~rwilliam

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