somgrid | R Documentation |

Plotting functions for SOM results.

```
somgrid(xdim = 8, ydim = 6, topo = c("rectangular", "hexagonal"))
## S3 method for class 'somgrid'
plot(x, type = "p", ...)
## S3 method for class 'SOM'
plot(x, ...)
```

`xdim, ydim` |
dimensions of the grid |

`topo` |
the topology of the grid. |

`x` |
an object inheriting from class |

`type, ...` |
graphical parameters. |

The class `"somgrid"`

records the coordinates of the grid to be
used for (batch or on-line) SOM: this has a plot method.

The plot method for class `"SOM"`

plots a `stars`

plot of the representative at each grid point.

For `somgrid`

, an object of class `"somgrid"`

, a list with
components

`pts` |
a two-column matrix giving locations for the grid points. |

`xdim, ydim, topo` |
as in the arguments to |

Venables, W. N. and Ripley, B. D. (2002)
*Modern Applied Statistics with S.* Fourth edition. Springer.

`batchSOM`

, `SOM`

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