R: Convert Objects to Class hclust

as.hclust {stats} | R Documentation

## Convert Objects to Class hclust

### Description

Converts objects from other hierarchical clustering functions to class `"hclust"`.

### Usage

    as.hclust(x, ...)

### Arguments

`x` | Hierarchical clustering object
`...` | further arguments passed to or from other methods.

### Details

Currently there is only support for converting objects of class `"twins"` as produced by the functions `diana` and `agnes` from the package cluster. The default method throws an error unless passed an `"hclust"` object.

### Value

An object of class `"hclust"`.

### See Also

`hclust`, `diana`, `agnes`

### Examples

    x <- matrix(rnorm(30), ncol=3)
    hc <- hclust(dist(x), method="complete")

    if(require(cluster, quietly=TRUE)) {# is a recommended package
      ag <- agnes(x, method="complete")
      hcag <- as.hclust(ag)
      ## The dendrograms order slightly differently:
      op <- par(mfrow=c(1,2))
      plot(hc) ;  mtext("hclust", side=1)
      plot(hcag); mtext("agnes",  side=1)
    }

[Package stats version 2.8.1 Index]