Description Usage Arguments Details Value Note Author(s) References See Also Examples

Compute MAD between colums of a matrix or data.frame. Can be used to create a similarity matrix for a microarray experiment.

1 | ```
madMatrix(x)
``` |

`x` |
matrix or data.frame |

This functions computes the so called similarity matrix (based on MAD) for a microarray experiment; cf. Buness et. al. (2004).

matrix of MAD values between colums of `x`

A first version of this function appeared in package SLmisc.

Matthias Kohl [email protected]

Andreas Buness, Wolfgang Huber, Klaus Steiner, Holger Sueltmann, and Annemarie Poustka. arrayMagic: two-colour cDNA microarray quality control and preprocessing. Bioinformatics Advance Access published on September 28, 2004. doi:10.1093/bioinformatics/bti052

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