MAplot {affy} | R Documentation |

## Relative M vs. A plots

### Description

Create boxplots of M or M vs A plots. Where M is determined relative
to a specified chip or to a pseudo-median reference chip.

### Usage

MAplot(object,...)
Mbox(object,...)
ma.plot(A,M,subset=sample(1:length(M),min(c(10000, length(M)))),show.statistics=TRUE,span=2/3,family.loess="gaussian",cex=2,...)

### Arguments

`object` |
An `AffyBatch-class` |

`...` |
Additional parameters for the routine |

`A` |
A vector to plot along the horizonal axis |

`M` |
A vector to plot along vertical axis |

`subset` |
A set of indices to use when drawing the loess curve |

`show.statistics` |
If true some summary statistics of the M values
are drawn |

`span` |
span to be used for loess fit. |

`family.loess` |
`"guassian"` or `"symmetric"` as in
`loess` . |

`cex` |
Size of text when writing summary statistics on plot |

### See Also

`mva.pairs`

### Examples

data(affybatch.example)
MAplot(affybatch.example)
Mbox(affybatch.example)

[Package

*affy* version 1.8.1

Index]