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| From | Nick Cox <njcoxstata@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | Re: st: How to compose constraint with a series of variables? |
| Date | Sat, 19 Mar 2011 23:43:47 +0000 |
You can't, or so I believe. I think the best you can do is to define
many constraints within a loop. For example, suppose you had variables
v1-v1000 and you wanted to impose the same constraint on each. A
skeleton could be
forval i = 1/1000 {
constraint `i' v`i' = < whatever>
}
That said, I don't how successful you are likely to be imposing
hundreds of constraints.
Nick
On Sat, Mar 19, 2011 at 9:56 PM, Muyang Zhang <zmyfudan@gmail.com> wrote:
>
> I wish to set constraints in regression. I know usually it can be
> implemented by the -constraint- command.
>
> But my problem is that I have a series of variables (over 1000)
> starting with the same phrase followed by numbers. How can I compose
> constraints with -*- operator?
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