Thanks Nick
it worked!
cinzia
Nick Cox wrote:
>Consider
>
>. sysuse auto, clear
>
>. su mpg [w=weight], detail
>(analytic weights assumed)
>
> Mileage (mpg)
>-------------------------------------------------------------
> Percentiles Smallest
> 1% 12 12
> 5% 14 12
>10% 14 14 Obs 74
>25% 16 14 Sum of Wgt. 223440
>
>50% 19 Mean 20.11153
> Largest Std. Dev. 5.400251
>75% 23 34
>90% 28 35 Variance 29.16271
>95% 30 35 Skewness 1.121803
>99% 35 41 Kurtosis 4.694955
>
>. di r(p90) - r(p10)
>14
>
>That may be what you want.
>
>Nick
>[email protected]
>
>Cinzia Rienzo
>
>> i have to compute the gap centile (90-10) for the variable
>> "res1st_zs"
>> and weighed by the variable "hwt" for time series data.
>> But STATA does not allow me weighed centile, i also tried the
>> "dialog"
>> but i didn t get the results i wanted.
>
>*
>* 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/
>
*
* 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/
