multifreqpoly {ENmix} | R Documentation

## Frequency polygon plot to display data distribution.

### Description

Produce Frequency polygon plot for each column of a numeric data matrix.

### Usage

    multifreqpoly(mat, nbreaks=100, col=1:ncol(mat), xlab="",
                  ylab="Frequency",legend = list(x = "top", fill=col,
                  legend = if(is.null(colnames(mat))) paste(1:ncol(mat))
                  else colnames(mat)),...)

### Arguments

`mat` | A numeric matrix
`nbreaks` | The number of bins for frequency counting
`col` | Line plot color code, the length should be equal to the number of columns in mat
`xlab` | x-axis lable
`ylab` | y-axis lable
`legend` | A list of arguments that get passed to the function "legend"
`...` | Further arguments that get passed to the function "plot"

### Value

Frequency polygon plot.

### Author(s)

Zongli Xu

### References

Zongli Xu, Liang Niu, Leping Li and Jack A. Taylor, ENmix: a novel background correction method for Illumina HumanMethylation450 BeadChip. Nucleic Acids Research 2015.

### Examples

    if(FALSE){
    if (require(minfiData)) {
    mdat <- preprocessRaw(RGsetEx)
    beta=getBeta(mdat, "Illumina")
    multifreqpoly(beta,col=rep("black",ncol(beta)))
    }}

[Package ENmix version 1.23.5 Index]