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From | Nanlesta Pilgrim <nanlesta@gmail.com> |
To | statalist@hsphsun2.harvard.edu |
Subject | st: RE: El-Badry correction help |
Date | Wed, 28 Sep 2011 13:15:57 -0400 |
Dear Statalist, What am I missing? I am trying to apply the El-Badry correction to census data. I began by creating a counting variable within each age category (15-49). Then I did the following: regress pnsborn pzeroborn /*restricting the analysis to the first observation*/ predict yhat /*predicted values from the regression model*/ *Produced a scatter plot with regression line added graph twoway lfit pnsborn pzeroborn || scatter pnsborn pzeroborn *Compute residuals, create new variable residuals: predict residuals, resid *Produce a residual plot by age groups with horizontal line at 0 *Should be no pattern twoway (connected residuals age3, sort), ytitle(residuals) yline(0) xlabel(#12, labels valuelabel) The graph is actually showing a pattern- when there should be none. What have I either done wrong or failed to add? Thanks! Terri * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/