plotDensity {yarn} | R Documentation

## Density plots of columns in a matrix

### Description

Plots the density of the columns of a matrix. Wrapper for `matdensity`.

### Usage

    plotDensity(obj, groups = NULL, normalized = FALSE, legendPos = NULL,
      ...)

### Arguments

`obj` | ExpressionSet object
`groups` | Vector of labels for each sample or a column name of the phenoData slot for the ids to filter. Default is the column names.
`normalized` | TRUE / FALSE, use the normalized matrix or log2-transformed raw counts
`legendPos` | Legend title position. If null, does not create legend by default.
`...` | Extra parameters for matdensity.

### Value

A density plot for each column in the ExpressionSet object colored by groups

### Examples

    data(skin)
    filtData <- filterLowGenes(skin,"SMTSD")
    plotDensity(filtData,groups="SMTSD",legendPos="topleft")
    # to remove the legend
    plotDensity(filtData,groups="SMTSD")

[Package yarn version 1.12.0 Index]