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2010 Oct 25
1
lowess() won't handle NAs
...39;em, so that the smoothing looks
like a mess in the plot ....
I attach my scripts, a function that would automatize the process
explained above
#d = a data.frame with some Na
#c1,c2 =column indexes
regr.plot<-function(d,c1,c2,
method=c("spearman","pearson"),titolo,xtag,ytag,livello){
test<-cor.test(d[,c2],d[,c1],method="spearman")
pval<-round(test$p.val,4)
corr<-round(test$estimate,4)
I<-predict(lm(d[,c1]~d[,c2]),newdata=d,interval="confidence",level=livello)
plot(d[,c2],d[,c1],xlab=as.character(xtag),ylab=as.character(ytag))
title(as....