Assuming a constant bin width, you need to multiply the density by n*binwidth, where the bin width is (obviously!) the width of the histogram bins.
>>> Jacques Wagnor <jacques.wag...@gmail.com> 05/09/09 5:10 PM >>> Dear List, When I plot a histogram with 'freq=FALSE' and overlay the histogram with a normal pdf curve, everything looks as expected, as follows: x <- rnorm(1000) hist(x, freq=FALSE) curve(dnorm(x), add=TRUE, col="blue") What do I need to do if I want to show the frequencies (freq=TRUE) with the same normal pdf overlay, so that the plot would still look the same? Regards, Jacques platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 8.0 year 2008 month 10 day 20 svn rev 46754 language R version.string R version 2.8.0 (2008-10-20) ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ******************************************************************* This email and any attachments are confidential. Any use...{{dropped:8}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.