Superimpose a normal distribution to a density using ggplot in R

ggplot2, r

Solution

Following @aosmith advice:

ggplot(Data, aes(x=Rel)) +
    geom_density(aes(y=..density.., fill=factor(cut)), position="stack") +
    stat_function(fun = dnorm, args = list(mean = Rel.mean, sd = Rel.sd))

Works!

Problem

I am trying to superimpose a normal distribution to a density using ggplot in R: ``` ggplot(Data, aes(x=Rel, y=..density..)) + geom_density(aes(fill=factor(cut)), position="stack") + stat_function(fun = dnorm, args = list(mean = Rel.mean, sd = Rel.sd)) ``` But I keep getting this error: ``` Error in eval(expr, envir, enclos) : object 'density' not found Calls: print ... <Anonymous> -> as.data.frame -> lapply -> FUN -> eval ``` Why? Any solution?

Original source

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