R: Methods for Function image in Package 'flexclust'

image-methods {flexclust} | R Documentation

## Methods for Function image in Package ‘flexclust’

### Description

Image plot of cluster segments overlaid by neighbourhood graph.

### Usage

    ## S4 method for signature 'kcca'
    image(x, which = 1:2, npoints = 100,
             xlab = "", ylab = "", fastcol = TRUE, col=NULL,
             clwd=0, graph=TRUE, ...)

### Arguments

`x` | An object of class `"kcca"`.
`which` | Index number of dimensions of input space to plot.
`npoints` | Number of grid points for image.
`fastcol` | If `TRUE`, a greedy algorithm is used for the background colors of the segments, which may result in neighbouring segments having the same color. If `FALSE`, neighbouring segments always have different colors at a speed penalty.
`col` | Vector of background colors for the segments.
`clwd` | Line width of contour lines at cluster boundaries, use larger values for `npoints` than the default to get smooth lines. (Warning: We really need a smarter way to draw cluster boundaries!)
`graph` | Logical, add a neighborhood graph to the plot?
`xlab, ylab, ...` | Graphical parameters.

### Details

This works only for `"kcca"` objects, no method is available for "kccasimple" objects.

### Author(s)

Friedrich Leisch

### See Also

`kcca`

[Package flexclust version 1.4-0 Index]