Because it curve does not work with histogram?

Question

I have no idea why this simple command does not work?

    set.seed(12345)
    x<-rnorm(1000,0,10)
    hist(x)
    curve(dnorm(x,0, 10), add=TRUE, yaxt="n", col="red", log=FALSE)

Possible dupe: [Fitting a density curve to a histogram in R](http://stackoverflow.com/q/1497539/903061). — Gregor Thomas, May 12 '16 at 22:50

score 2 · Accepted Answer · edited May 12 '16 at 22:51

2

You are overlaying density over a frequency graph. You need to convert your histogram to a density plot.

hist(x, freq = FALSE)
curve(dnorm(x,0, 10), add=TRUE, col="red", log=FALSE)

edited May 12 '16 at 22:51

Gregor Thomas

answered May 12 '16 at 22:45

Divi

The answer is correct. Edit the code, however, by the image. – Héctor Garrido May 12 '16 at 22:51

1 Answers1