R: Calculate the total length of lines to draw the dendrogram

cal_total_length {dendsort} | R Documentation

## Calculate the total length of lines to draw the dendrogram

### Description

`cal_total_length` is a code modified from plot.dendrogram() to calculate the total length of lines to draw a dendrogram. This function was developed to evaluate the use of ink for visualization.

### Usage

    cal_total_length(x)

### Arguments

`x` | A dendrogram object.`x`

### Value

output The total length.

### Examples

    #generate sample data
    set.seed(1234); par(mar=c(0,0,0,0))
    x <- rnorm(10, mean=rep(1:5, each=2), sd=0.4)
    y <- rnorm(10, mean=rep(c(1,2), each=5), sd=0.4)
    dataFrame <- data.frame(x=x, y=y, row.names=c(1:10))
    #calculate Euclidian distance
    distxy <- dist(dataFrame)
    #hierachical clustering "complete" linkage by default
    hc <- hclust(distxy)

    total_length <- cal_total_length(as.dendrogram(hc))

[Package dendsort version 0.3.3 Index]