[R] density plot of simulated exponential distributed data
Juanjuan Chai
chaij at umail.iu.edu
Wed Apr 27 00:19:04 CEST 2011
Hi all,
I tried to plot the density curve using the data from simulation. I am
sure that the data should be exponentially distributed, but the plot
of density curve always starts from (0,0) which is not the case for
exponential distribution. Is there any way around this, to keep the
curve dropping at 0?
Thanks.
The following are the codes I tested:
data <- vector()
rate <- 3
i <- 1
for(i in 1:1000){
r <- runif(1)
data[i] <- log(1-r)/(-rate)
i <- i+1
}
plot(density(data))
-JJ
More information about the R-help
mailing list