[EMAIL PROTECTED] wrote:
Dear R user,
I need plot an histogram for the occurrence of a dataset, and then add a line
corresponding to the freuqnecy of another similar dataset. in order to do
this i used the function
hist_data1=hist(data1, breaks= seq(0,50,5), plot=FALSE)
hist_data2=hist(data2, breaks= seq(0,50,5), plot=FALSE)
then I plotted the frequency
barplot(hist_data1$density)
lines(hist_data1$density)
barplot() returns the positions on x-axis (these may be non-integers)
where it draws the plots, hence you can say:
bp - barplot(hist_data1$density)
lines(bp, hist_data1$density)
but the line is shifted in respect to the center of the bars. how can I
properly plot the line? another question. this is easy, how can I smooth the
curve (not fit with loess of spline)?
If you do not tell us which kind of smoother you prefer
Uwe Ligges
tnx
--
Claudio
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