[R] Add the Gauss curve on histogram

[Jeff Newmiller]

Not reproducible (sample data missing).

http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
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Sent from my phone. Please excuse my brevity.

On March 16, 2015 5:34:18 PM PDT, varin sacha <varinsacha at yahoo.fr> wrote:
>Dear R-Experts,
>
>I can easily plot an histogram and its density curve. But when I try to
>add the Gauss curve on the histogram with the following Rcode here
>below, I don't get it. What is wrong ? Or what is missing in my code ?
>
>##Plot an histogram
>h=hist(newdata$math.test, prob=TRUE, col="blue", border="white",
>xlab="Note test math", ylab="Densité", main="Test math") 
>
>##Add the density curve on the histogram
>lines(density(newdata$math.test,na.rm=TRUE),lwd=2,col="orange") 
>
>##Add the Gauss curve on the histogram
>x <- seq(from = min(newdata$math.test, na.rm=TRUE), to =
>max(newdata$math.test, na.rm=TRUE), lines(x, dnorm(x,
>mean(newdata$math.test, na.rm = TRUE), sd(newdata$math.test, na.rm =
>TRUE))) 
>
>
>Best, thanks for your time.
>
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