Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Re: counting in radioactive measurement


From   "Steichen" <steichen@triad.rr.com>
To   "StataList" <statalist@hsphsun2.harvard.edu>
Subject   st: Re: counting in radioactive measurement
Date   Sun, 13 Jun 2004 10:47:46 -0400

Andreas,

The following code should do what you want:

local mult = 1.003
local i = 0
while 30*`mult'^(`i'+1) < 10000 {
*   di 30*`mult'^`i' ": " _c
   count if dosis_corr >= 30*`mult'^`i' & dosis_corr < 30*`mult'^(`i'+1)
   local i = `i'+1
}

If you wish to see the ranges being counted, remove the asterisk (*) on the
display statement

Tom

----- Original Message ----- 
From: "Andreas Aschbacher" <aa_surf@gmx.at>
To: <statalist@hsphsun2.harvard.edu>
Sent: Sunday, June 13, 2004 9:26 AM
Subject: st: counting in radioactive measurement


> Dear fellows !
>
> I am using the following program for counting my variable-values :
> /the name of the variable is dosis_corr /
> --------------------------
> local i = 1
> while `i' < 10000 {
>         count if dosis_corr >= `i' & dosis_corr  < `i' + 1
>         display
>         local i = `i' + 1
> }
> --------------------------
> my question:
> I'd like to start with i = 30 instead of 1 (see above)by using
> multiplikation-faktor mult : mult = 1.003 in the following way:
> counting between  30(<=) and (<)30* mult    then
> counting between  30*mult(<=)  and (<)30* (mult)^2  then
> counting between  30*(mult)^2(<=) and (<)30* (mult)^3  and so on
> with: 30 * (mult)^n no larger than 10000 as condition
> ~
> any help will be appreciated very much !
> I did not have Stataprogramming-course yet
>
> sincerely aschbacher andreas
>
>
>
>
>
> -- 
> "Sie haben neue Mails!" - Die GMX Toolbar informiert Sie beim Surfen!
> Jetzt aktivieren unter http://www.gmx.net/info
>
> *
> *   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index