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Re: Re: Re: st: What wrong with this ML model command?


From   Quang Nguyen <quangn@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: Re: Re: st: What wrong with this ML model command?
Date   Thu, 9 Apr 2009 22:23:59 -1000

Thank you very much Glenn for your great help. I appreciate it. The
program now works nicely after I make some changes as you suggested.

Many thanks!

On Thu, Apr 9, 2009 at 12:47 PM, Glenn Goldsmith
<glenn.goldsmith@gmail.com> wrote:
> Hi Quang,
>
> These two lines:
>
>>            - replace `yb0' = ( `y_bo')^(`alpha') if `y_b0'>=0
>>            = replace __000014 = ( )^(__00000T) if __000018>=0
>
> Tell you that the local macro `y_bo' in the first line is empty (hence the
> empty parentheses when the macro is evaluated in the second line).
>
> I assume you mean `y_b0' instead.
>
> As an aside, you could just code
>
>  generate double `yb0' = (`y_b0')^(`alpha') if `y_b0'>=0
>
> instead of
>
>  generate double `yb0' = .
>  replace `yb0' = (`y_b0')^(`alpha') if `y_b0'>=0
>
> Same goes for `ya1'.
>
> HTH,
>
> Glenn.
>
> Quang Nguyen <quangn@gmail.com> wrote:
>
> Thanks Glenn and Maarten. I appreciate it.
>
> Here is part of the "trace" that contains the error:
>
>            - generate double `yb0' = .
>            = generate double __000014 = .
>            - replace `yb0' = ( `y_bo')^(`alpha') if `y_b0'>=0
>            = replace __000014 = ( )^(__00000T) if __000018>=0
> invalid syntax
>              replace `yb1' = ( `y_b1')^(`alpha') if `y_b1'>=0
>
> I double check the code and nothing seems wrong. Do you have any idea?
>
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