Yes, you are right,I have copied it wrongly ,myself, instead of coding
"invttail" I have coded "invtail" and thus the error sign.
.
Original Message -----
From: "Martin Weiss" <[email protected]>
To: <[email protected]>
Sent: Thursday, January 22, 2009 3:22 PM
Subject: st: AW: Re:code for R-Squared and p
> Line for the server
>
> Victor,
>
> what is weird about your question is that my version of the MUS book, page
> 143, reads "invttail($numobs-2,.025) ", and so does the relevant do file
> (obtainable from http://www.stata-press.com/data/mus/mus.zip)
mus04p1sim.do,
> line 422.
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Victor M.
> Zammit
> Gesendet: Donnerstag, 22. Januar 2009 14:59
> An: [email protected]
> Betreff: st: Re:code for R-Squared and p
>
> I am going over an excellent Econometrics bookk,called "Microeconometrics
> Using Stata" by A.C Cameron and P.V. Trivedi..The problem is that some of
> its code is compatible with version 10.1 ,only,while I have not upgraded
> above version 9.2,yet.
> I have come across the following code on page 143 :
>
> return scalar r2 = abs(return(t2))>invtail($numobs-2,.025) , and
> return scalar p2 = 2*ttail($numobs-2,abs(return(t2)))
>
> and apperently ,for version 9 , function invtail() is unknown,whereas
> ,returning p ,I get a dot "." ,every time I try it.
> I would appreciate any help
> Thank you very much ,before hand,
> Victor m. Zammit
>
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