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Re: st: forvalues, panel data

From   David Kantor <>
Subject   Re: st: forvalues, panel data
Date   Thu, 30 Sep 2010 09:37:14 -0400

Putting aside the -forvalues- issues, which were addressed in another response by Nick Cox, you may be interested in my -cpiadj- program for doing cpi-adjustments. This covers the U.S. cpi (Consumer Price Index) from 1976 through 2004, though it could certainly be enhanced to cover the latest available years. It does the general all-items, all-US-consumers flavor, plus several others (food, shelter, etc.). If you are interested, write to me privately. This has not been made public, but if there is interest, I would consider publishing it.

At 05:58 AM 9/30/2010, Biljana wrote:

I have panel data (companies, fiscal years) and need to deflate numbers
to US$ 1980

tsset  gvkey_n  fyear

I used forvalues function and did it like this:

First I created variable just with dots:

gen dI2=.

Then simple forvalues loop

.forvalues fyear = 1980/1990 {
.replace dI2=I2*1 if fyear==1980
.replace dI2=I2*0.967059 if fyear==1981
.replace dI2=I2*0.421106 if fyear==1982
.replace dI2=I2*0.307175 if fyear==1990

So that works, but since I have 10 variables (from I1 to I10) that need
to be deflated, repeating the whole procedure is time consuming... so I
tried by using var i=I1-I10, etc... but always got reply invalid

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