Hi to everyone and thanks for this service.

I have a doubt with legend, I have seen ?legend, but I don't get the way to write in my code the 

legend that I want, 

This is my code:



for( i in 1:4)}

        pdf(paste("plotImputed", i,".pdf",sep=""))
 	plot(a[,6], type="l", main=paste( "Imputed Data GRUPO",i) )
 	for(k in 3:9)(lines(a[, k], type="l", col=k))
 	dev.off()

}


Each line represent a column of my data set, they are called: IE.2004, IE.2006, IE.2007....IE.2010 and this is (IE.2005, IE.2006...) 

 what I would like to see in the graph

Thanks a lot

Best regards, Teresa 		 	   		  
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