<>
No comma in the -varlist-, as advised in my earlier post. See -help
varlist-. Just type
-egen newvar=group(yearw region)-
I did forget a -newvarname- in my earlier post, though. Sorry about that!
***
sysuse auto, clear
egen newvar=group(rep for)
***
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Tharshini
Thangavelu
Gesendet: Mittwoch, 5. August 2009 09:27
An: [email protected]
Betreff: Re: AW: st: Fixed effect dummy variable
Hi,
I tried with the modified syntax but I still get the same error message. I
am
not quite sure way. Can it be due to my stata version? I have intercooled
Stata
9.0 for windows. Or because the yearw (year of work) consists of 10 year
period
while the region (census region) consists only of 9 region. But I have hard
time
to believe that it can be due to this problem.
. egen group (yearw,region)
invalid syntax
r(198);
/ Tharshini
On 2009-08-05, at 09:01, Martin Weiss wrote:
>
> <>
>
> " I was trying with the following syntax:
> egen, group(year)
> egen, group(region)"
>
>
>
> -egen, group()- does take a -varlist-. So stick both vars in there:
>
> -egen, group(year region)-
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Tharshini
> Thangavelu
> Gesendet: Mittwoch, 5. August 2009 08:58
> An: [email protected]
> Betreff: Re: st: Fixed effect dummy variable
>
> Hi Clive,
>
> Yes, I meant a way of a combination. But the command that you have given
me
> doesn't seem to be working. I keep getting the error message : invalid
> syntax.
> I have year of work from 1987 - 1996 (=total 10 years)and 9 region.
>
> .tab yearw
>
> yearw | Freq. Percent Cum.
> ------------+-----------------------------------
> 1987 | 23,125 10.83 10.83
> 1988 | 21,510 10.08 20.91
> 1989 | 23,334 10.93 31.84
> 1990 | 23,110 10.83 42.67
> 1991 | 22,774 10.67 53.34
> 1992 | 22,235 10.42 63.75
> 1993 | 21,233 9.95 73.70
> 1994 | 20,747 9.72 83.42
> 1995 | 17,606 8.25 91.66
> 1996 | 17,793 8.34 100.00
> ------------+-----------------------------------
> Total | 213,467 100.00
>
>
> .tab region
>
> census |
> region | Freq. Percent Cum.
> ------------+-----------------------------------
> 11 | 17,436 8.17 8.17
> 12 | 30,363 14.22 22.39
> 21 | 31,048 14.54 36.94
> 22 | 18,448 8.64 45.58
> 31 | 34,182 16.01 61.59
> 32 | 9,581 4.49 66.08
> 33 | 19,520 9.14 75.22
> 41 | 21,222 9.94 85.17
> 42 | 31,667 14.83 100.00
> ------------+-----------------------------------
> Total | 213,467 100.00
>
>
> I was trying with the following syntax:
> egen, group(year)
> egen, group(region)
>
> /Tharshini
>
>
> On 2009-08-05, at 06:33, Clive Nicholas wrote:
>> Tharshini Thangavelu wrote:
>>
>>> How do I create year and region fixed effect dummy variables?
>>
>> If you mean by way of a combination, then -egen, group()- will do the
> trick.
>>
>> --
>> Clive Nicholas
>>
>> [Please DO NOT mail me personally here, but at
>> <[email protected]>. Please respond to contributions I make in
>> a list thread here. Thanks!]
>>
>> "My colleagues in the social sciences talk a great deal about
>> methodology. I prefer to call it style." -- Freeman J. Dyson.
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>
> --
> Tharshini THANGAVELU
> Forskarbacken 8 / 101
> 114 16 Stockholm
> Sweden
> Phone +46 (0)735 53 43 90
> E-mail [email protected]
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
--
Tharshini THANGAVELU
Forskarbacken 8 / 101
114 16 Stockholm
Sweden
Phone +46 (0)735 53 43 90
E-mail [email protected]
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
