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st: centile with if


From   Ozgur Ozdemir <[email protected]>
To   Stata <[email protected]>
Subject   st: centile with if
Date   Fri, 6 Jan 2012 11:52:00 +0000

Hi,
I would like to group the companies based on their market value centile however some of them have zero value and I would like to exclude them. my script below does not work as it includes the zero value companies. please can you suggest any alternative solution?

forvalues i=2000/2010 {

gen  Firm_Size_`i' =
"first"

replace Firm_Size_`i'="Missing" if missing(mv_`i')

}

forvalues i=2000/2010 {

centile mv_`i', cent(25 75)

replace Firm_Size_`i'="Small" if mv_`i'<=
`r(c_1)' & Firm_Size_`i' !="missing"

replace Firm_Size_`i'="Medium" if mv_`i'>
`r(c_1)' & mv_`i'<`r(c_2)' &Firm_Size_`i' !="missing"

replace Firm_Size_`i'="Large" if mv_`i'>=
`r(c_2)' & Firm_Size_`i' !="missing"

} 
 
 
kind regards
Ozgur Ozdemir

E: [email protected]
Skype : ozgurozdemir2005
 		 	   		  
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