Plot results of Self Organizing Maps (SOM).

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`obj` |
result object from |

`grp` |
numeric vector or factor with group information |

`type` |
type of presentation for output, see details |

`margins` |
plot margins for output, see |

`...` |
additional graphics parameters, see |

The results of Self Organizing Maps (SOM) are plotted either in a table with numbers (type="num") or with barplots (type="bar"). There is a limitation to at most 9 groups. A summary table is returned.

`sumtab ` |
Summary table |

Peter Filzmoser <P.Filzmoser@tuwien.ac.at>

K. Varmuza and P. Filzmoser: Introduction to Multivariate Statistical Analysis in Chemometrics. CRC Press, Boca Raton, FL, 2009.

`som`

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