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st: RE: generate


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: generate
Date   Tue, 30 Mar 2010 23:32:08 +0200

<>

You did not persuade Stata to process 

*******
forvalues `i' = 1/20 {
*******

did you? Those single quotes came off before the code ran, right?



" I do have a
very basic statement on how to generate a variable which is equal to
the lowest 10th percentile of income(Dy) ?"


If that is all you want, you could say:

***
_pctile Dy, percent(10)
gen tenthperc=r(r1)
***


What do those C1 to C20 contain, BTW?



HTH
Martin

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Mirriam Gee
Sent: Dienstag, 30. März 2010 23:16
To: statalist@hsphsun2.harvard.edu
Subject: st: generate

Hallo everyone, I am new in stata. I am using STATA 9.2. I do have a
very basic statement on how to generate a variable which is equal to
the lowest 10th percentile of income(Dy) ?
I tried this:
sort Dy
Xtile deciles = Dy, n(10)
forvalues `i' = 1/20 {
bys deciles : egen CC`i' =mean (C`i' )
}
 This seem to do part of the job. But it gives me mean of all deciles.
For example CC1 varies from decile 1-10 as follows:
Deciles                    CC1               CC2
CC3..............................................
1                              333                440
1                              333                440
1                              333                440
2                              605                777
2                              605                777
2                              605                777
2
..
..

As a next step i now want to create a new variable which only uses
mean of the lowest decile  for all variables e.g CCC`i'= mean of
decile 1  for all observations. To be more precise i want CCC1 to be
equl to 333 for all observation, and CCC2 to be 440 etc I know i can
do this manually by checking value of CC`i'  when decile=1 , and then
proceed to input values:

                                  generate CCC1 = 330


                             generate CCC2=  440


                                    .         .


                                    .         .


                               etc up to 20th item.
I was just wondering if there is a way of doing it automatically in my
do file without stoping and checking results and inputting them
manually, because i do have a lot of variables, even more than 20?


Mirriam

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