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st: Thread-Index: AczWnG9bfd8mYxtIRa2sdn3BOpo1xA==


From   "STANEVA A. (497186)" <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: Thread-Index: AczWnG9bfd8mYxtIRa2sdn3BOpo1xA==
Date   Thu, 19 Jan 2012 11:21:25 +0000

Dear Stata List Users,
Can someone help me with this loop in a qreg?
This first line works ok!

forval i = 1/99 {
  local q = `i'/100
  quietly qreg $y $x if public==0, quantile(`q') nolog
  matrix b = e(b)
  matrix b[1, colnumb(b,"_cons")] = scalar(u99) /*I get the constant and replace it with the scalar u99, that I want/
}

The problem comes here. I want the replaced u99 to be included in my qreg and then to get the predictions based on that regression: 

forval i = 1/99 {
  local q = `i'/100
  local `b’= scalar (u99)
  quietly qreg $y $x if public==0, quantile (`q') nolog  
  predict xb if public==0
  preserve
  keep if xb~=.
  restore
 }
However, there is a problem in the line local`b'=scalar(u99), it seems stata doesn’t replace the _cons with the u99. It runs normal qreg, ignoring all this manipulations.

I will appreciate your help!

Best wishes
Anita
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