RE: st: programming error with -generate-

["Martin Weiss" <martin.weiss1@gmx.de>]

<>

" Perhaps because of its relation to hexadecimal formats, we should just
avoid using it when programming."


Yet the fact that "y" was constant in your initial example, in spite of "x"
running from 1 to 10, gave all possible indications that something was
seriously amiss. So my guess is that any serious debugging would uncover
this flaw. (Never hurts to at least run -inspect- on your newly created
vars, does it?)


HTH
Martin


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Visintainer, Paul
Sent: Dienstag, 9. März 2010 00:12
To: 'statalist@hsphsun2.harvard.edu'
Subject: RE: st: programming error with -generate-

Thanks, Stas.  I think I'm beginning to understand.  My concern is that x is
such a generic variable name used by most of us for programming equations.
Perhaps because of its relation to hexadecimal formats, we should just avoid
using it when programming.

-p

___________________________________
Paul F. Visintainer, PhD
Baystate Medical Center
Springfield, MA 01199

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Stas Kolenikov
Sent: Monday, March 08, 2010 4:58 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: programming error with -generate-

Some indication can be found in help format##xformat about heXadecimal
formats. So 1.2x is getting interpreted as 1 + 2/16 = decimal 1.125. However
if you try to -display- it directly, it does not come out; it needs to be
wrapped inside an expression of some kind to get evaluated.

On Mon, Mar 8, 2010 at 3:51 PM, Kieran McCaul
<Kieran.McCaul@uwa.edu.au>wrote:

> ...
>
>
> or try this:
>
>
>
> clear
>
> forvalues i = 1/9 {
> di 1.`i'x + 1
> }
>
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Partha Deb
> Sent: Tuesday, 9 March 2010 5:49 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: programming error with -generate-
>
> For even more head scratching, try this:
>
> clear all
>
> forvalues i=1/6 {
> set obs 10
> gen y = 1.2x + `i'
> tab y
> drop _all
> }
>
> Partha
>
>
> Visintainer, Paul wrote:
> > I have a question which I hope merely reflects that I'm missing
> something obvious or a syntax that I don't recognize.  I'm using version
> 10.1 MP on a PC.  I've run this on three different PCs and get the same
> result.  Why doesn't the generate command for "y" give an error?  The
> -generate- command gives errors for y1, y2, and y3.  Also, I don't
> understand the output for -tab- command for "y".  Is there some syntax
> that I'm not aware of?
> >
> > What am I missing here?
> >
> >
> > . clear
> > . set obs 10
> > obs was 0, now 10
> >
> > . range x 1 10
> > . range t 1 10
> > . range w 1 10
> >
> > . gen y = 1.2x + 6   <----- why isn't there an error here?
> >
> > . gen y1 = 1.2t + 6
> > 2t invalid name
> > r(198);
> >
> > . gen y2 = 1.2w + 6
> > 2w invalid name
> > r(198);
> >
> > . gen y3 = 2x + 6
> > 2x invalid name
> > r(198);
> >
> >
> > . tab y
> >
> >           y |      Freq.     Percent        Cum.
> > ------------+-----------------------------------
> >          72 |         10      100.00      100.00
> > ------------+-----------------------------------
> >       Total |         10      100.00
> >
> >
> >
> > ___________________________________
> > Paul F. Visintainer, PhD
> > Baystate Medical Center
> > Division of Academic Affairs - 3rd Floor
> > Springfield, MA 01199
> >
> > ----------------------------------------------------------------------
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>
> --
> Partha Deb
> Professor of Economics
> Hunter College
> ph:  (212) 772-5435
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-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.

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contain confidential and privileged information for the use of the
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you are hereby notified that you have received this communication in error
and that any review, disclosure, dissemination, distribution or copying of
it or its contents is prohibited. If you have received this communication in
error, please reply to the sender immediately or by telephone at (413)
794-0000 and destroy all copies of this communication and any attachments.
For further information regarding Baystate Health's privacy policy, please
visit our Internet web site at http://www.baystatehealth.com.

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