Thank you Scott. I though that -predopt(xb)- would
generate a new variable with the predicted values,
which is what I realy want.
Regards,
Ricardo.
--- Scott Merryman <[email protected]> wrote:
> Ricardo,
>
> The predopt uses the -predict- options from
> -regress-, since xb if the
> default predict option there was no change.
>
> But compare:
>
> . sysuse auto
> (1978 Automobile Data)
>
> . twoway qfit mpg price, predopt(xb)
>
> . twoway qfit mpg price, predopt(pr(0,20))
>
> Hope this helps,
> Scott
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On
> Behalf Of Ricardo Ovaldia
> Sent: Friday, July 02, 2004 10:18 AM
> To: [email protected]
> Subject: st: Graph's -predopt()-
>
> Dear _all,
>
> Could someone explain how to properly specify the
> -preopt()- option in -graph twoway-. I have look in
> the manual and in he help file but there is no
> detail
> or examples on how to use it. For example:
>
> . graph twoway qfit families x
> and
> . graph twoway qfit families x, pred(xb)
>
> produce the same correct plot, but the second one
> does
> nothing with the option.
>
> Thank you,
> Ricardo.
>
> =====
> Ricardo Ovaldia, MS
> Statistician
> Oklahoma City, OK
>
>
>
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=====
Ricardo Ovaldia, MS
Statistician
Oklahoma City, OK
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