# simple.densityplot: Plots densities of data In UsingR: Data Sets, Etc. for the Text "Using R for Introductory Statistics", Second Edition

## Description

Allows one to compare empirical densities of different distributions in a simple manner. The density is used as graphs with multiple histograms are too crowded. The usage is similar to side-by-side boxplots.

## Usage

 `1` ```simple.densityplot(x, ...) ```

## Arguments

 `x` x may be a sequence of data vectors (eg. x,y,z), a data frame with numeric column vectors or a model formula `...` You can pass in a bandwidth argument such as bw="SJ". See density for details. A legend will be placed for you automatically. To overide the positioning set do.legend="manual". To skip the legend, set do.legend=FALSE.

Makes a plot

John Verzani

## References

Basically a modified boxplot function. As well it should be as it serves the same utility: comparing distributions.

`boxplot`,`simple.violinplot`,`density`
 ```1 2 3 4 5 6 7 8``` ```## taken from boxplot ## using a formula data(InsectSprays) simple.densityplot(count ~ spray, data = InsectSprays) ## on a matrix (data frame) mat <- cbind(Uni05 = (1:100)/21, Norm = rnorm(100), T5 = rt(100, df = 5), Gam2 = rgamma(100, shape = 2)) simple.densityplot(data.frame(mat)) ```