Hi, I have a problem to understand the use of subsets of data while running a
regression model.
In particular, I am using sm.regression with these commands
plot(lndip96,gdip,col=1,type= "n")
sm.regression(add=T,lndip96,gdip)
and I must run this model for two subsets of the data; in particular for lndip<=2.7
and for lndip>2.7.
Thank you in advance for your help
Roberto Basile
ISAE (Istituto di Studi e Analisi Economica)
Piazza Indipendenza, 4
Roma
Tel. 06-44482874
Cell. 3286165588
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