R: Dendrogram with Clustering Annotation

hclustplot {bio3d} | R Documentation

## Dendrogram with Clustering Annotation

### Description

Draw a standard dendrogram with clustering annotation in the marginal regions and colored labels.

### Usage

    hclustplot(hc, k = NULL, h = NULL, colors = NULL, labels = NULL,
                 fillbox = FALSE, heights = c(1, .3), mar = c(1, 1, 0, 1), ...)

### Arguments

`hc` | an object of the type produced by `hclust`.
`k` | an integer scalar or vector with the desired number of groups. Redirected to function `cutree`.
`h` | numeric scalar or vector with heights where the tree should be cut. Redirected to function `cutree`. At least one of ‘k’ or ‘h’ must be specified.
`colors` | a numerical or character vector with the same length as ‘hc’ specifying the colors of the labels.
`labels` | a character vector with the same length as ‘hc’ containing the labels to be written.
`fillbox` | logical, if TRUE clustering annotation will be drawn as filled boxes below the dendrogram.
`heights` | numeric vector of length two specifying the values for the heights of rows on the device. See function `layout`.
`mar` | a numerical vector of the form ‘c(bottom, left, top, right)’ which gives the number of lines of margin to be specified on the four sides of the plot. If left at default the margins will be adjusted upon adding arguments ‘main’, ‘ylab’, etc.
`...` | other graphical parameters passed to functions `plot.dendrogram`, `mtext`, and `par`. Note that certain arguments will be ignored.

### Details

This function adds extended visualization of cluster membership to a standard dendrogram. If ‘k’ or ‘h’ is provided a call to `cutree` will provide cluster membership information. Alternatively a vector of colors or cluster membership information can be provided through argument ‘colors’.

See examples for further details on usage.

### Value

Called for its effect.

### Note

Argument ‘horiz=TRUE’ currently not supported.

### Author(s)

Lars Skjaerven

### References

Grant, B.J. et al. (2006) Bioinformatics 22, 2695–2696.

### See Also

`plot.hclust`, `plot.dendrogram`, `hclust`, `cutree`.

### Examples

    # Redundant testing excluded

    attach(transducin)

    ##- perform RMSD clustering
    rd <- rmsd(pdbs, fit=TRUE)
    hc <- hclust(as.dist(rd))

    ##- draw dendrogram
    hclustplot(hc, k=3)

    ##- draw dendrogram with manual clustering annotation
    #hclustplot(hc, colors=annotation[, "color"], labels=pdbs$id)

    detach(transducin)

[Package bio3d version 2.4-2 Index]