Dear all,
An alternative way I can figure out is to -recode var-var3
(missing=0)-, after which -gen- var4. This way is sorta stupid, but
effective.
The problem is I don't want to have my data base changed, so before
run in that way, I have to copy the original dataset and run the
commands on the copy version. It's unsafe. After all, that's not
Stata's style. But what I can figure out is just this.
Joe
On 10/7/05, Jia Xiangping <[email protected]> wrote:
> Dear all,
>
> I came across a problem about missing value. For example:(var1 var2
> var3 are categorical variables)
>
> index var1 var 2 var3 var 4
> 1 . 1 1
> 2 1 1 .
> 3 . 1 1
>
> Now I want to get the frequecy of each observation and generate a
> variable var4 which is the sum of frequency. So when I run -gen
> var4=var1+var2+var3-, I should have got 2,2,1. But I got three missing
> value. I'd like to say this problem is quite typical for missing value
> topic. I tried to find answer online. But no clues now. Does anybody
> can help me? Thanks
>
>
> --
> Xiangping JIA
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
Xiangping JIA
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
