normal.freq: Normal curve on the histogram

Description Usage Arguments Author(s) See Also Examples

View source: R/normal.freq.R

Description

A normal distribution graph elaborated from the histogram previously constructed. The average and variance are obtained from the data grouped in the histogram.

Usage

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normal.freq(histogram, frequency=1, ...)

Arguments

histogram

object constructed by the function hist

frequency

1=counts, 2=relative, 3=density

...

Other parameters of the function hist

Author(s)

Felipe de Mendiburu

See Also

polygon.freq, table.freq, stat.freq, intervals.freq, sturges.freq, join.freq, ogive.freq, graph.freq

Examples

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library(agricolae)
data(growth)
#startgraph
h1<-with(growth,hist(height,col="green",xlim=c(6,14)))
normal.freq(h1,col="blue")
#endgraph
#startgraph
h2<-with(growth,graph.freq(height,col="yellow",xlim=c(6,14),frequency=2))
normal.freq(h2,frequency=2)
#endgraph

agricolae documentation built on Sept. 13, 2017, 1:03 a.m.