[R] how to plot a fitted smooth line on histograms?

Hu Chen chencheva at gmail.com
Sun May 22 10:07:00 CEST 2005

for example,
>x <- read.table(....);  here x is a vector containing  my data to be analyzed.

then I got a histogram graph. However, How can't get a smooth curve
based on the histogram cells to show out the outline?

Thanks very much.

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