Hi,
I have a scatter plot of the variables GNI and Lifeexp (Gross National
Income and Life Expectancy, both metric). So I plotted them and I want to
add a regression line and a lowess line. I use lowess and not loess because
I have missing values. My code:
plot(GNI,Lifeexp)
abline(lm(Lifeexp~GNI), col="red")
y.loess<-loess(Lifeexp~GNI,na.
action = na.exclude)
y.predict<-predict(y.loess)
lines(GNI,y.predict)
But when I do this (I get no error messages) the plot looks strange. The
lowess line is not a blue smoothy line, but it looks really strange, I
attached a png screenshot.
Where is my mistake? Thanks a lot.
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