Hi,

I would like to overlap the cdf curve for observed and generated data  Here is 
my code:

plot(cdf,main ="CDF of the sum for winter 
season-Hume",cex.axis=1.2,xlab="Rainfall (mm)",
xaxs="i",yaxs="i",col=c("black","red"), lty=c(1,1),ylab="Cumulative 
probability", xlim=c(0,800),lwd=1)
lines(ecdf(datobs))
legend("topright", legend = c("observed","fitted"),
       col = c("black","red"), pch=c(NA,NA), lty = c(1, 1),
       lwd=c(3,3),bty="n", pt.cex=2)

It gives me the plots but it is not smooth.  How do I adjust so that I will get 
two smooth cumulative density curves. 

Thank you for any help given.


      
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