I am trying to plot a lognormal density curve on top of an existing histogram. Can anybody suggest a simple way to do this? Even if someone could just explain how to plot a regular normal density curve on top of an existing histogram, it would be a big help. Also, is there some way to search through the R-help archives other than simple browsing? Thank you so much. Your help and time is greatly appreciated.
plotting the lognormal density curve
2 messages · Garrett Gman, Henrik Bengtsson
For the normal distribution N <- 1000 xSamples <- rnorm(N, mean=0, sd=1) hist(xSamples, freq=FALSE) curve(dnorm(x, mean=0, sd=1), add=TRUE) Similar for log normal; dlnorm() & friends. Cheers Henrik Bengtsson
-----Original Message----- From: r-help-bounces at stat.math.ethz.ch [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Garrett Gman Sent: den 9 april 2003 09:25 To: r-help at stat.math.ethz.ch Subject: [R] plotting the lognormal density curve I am trying to plot a lognormal density curve on top of an existing histogram. Can anybody suggest a simple way to do this? Even if someone could just explain how to plot a regular normal density curve on top of an existing histogram, it would be a big help. Also, is there some way to search through the R-help archives other than simple browsing? Thank you so much. Your help and time is greatly appreciated.
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