Plot the weights of a given array using the spatial location of the genes on the slide.This function is a useful diagnostic tool.

1 | ```
weight.plot(mcmc.obj,coordinate,array=1)
``` |

`mcmc.obj` |
An object of class |

`coordinate` |
The coordinate of each gene on the corresponding array. The coordinates should be a two column integer valued matrix containing the row indices (column 1) and the column indices (column 2). The row indices should all be distinct. All indices should start at zero! |

`array` |
An integer corresponding to the array number to be plotted. |

The image plot of the weights. A small weight (bright color) correspond to an outlier.

Raphael Gottardo

Robust Estimation of cDNA Microarray Intensities with Replicates Raphael Gottardo, Adrian E. Raftery, Ka Yee Yeung, and Roger Bumgarner Department of Statistics, University of Washington, Box 354322, Seattle, WA 98195-4322

1 2 3 4 |

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