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secondpc
2001 Nov 27
2
overlaying qqnorm plots...
I know this topic has had plenty of discussion in the last couple of days,
but....
I've been trying to compare the effects of different fitted methods for
systems of equations (OLS, SUR, 2SLS, 3SLS ) and would like to compare the
residual plots (easy) and the qqnorm/qqplot of the fits for the different
fitted methdos. For example,
qqnorm( residuals( lm( q ~ p + f + a ) ) )
par( new = TRUE )