f_distance2vector {sincell} | R Documentation

## Conversion of the lower triangular matrix of a distance matrix into an array

### Description

Auxiliary function to convert of the lower triangular matrix of a distance matrix into an array

### Usage

    f_distance2vector(distance)

### Arguments

`distance` | A distance matrix or a symmetric matrix

### Value

Array resulting from the concatenation of the rows of the lower triangular matrix of the input symetric matrix. Array length is n*(n-1)/2, where n is the number of rows of the symetric matrix.

### Examples

    ## Generate some data
    Data <- matrix(rnorm(300),ncol=10,nrow=30)

    ## Calculate distance matrix and transform its lower triangular matrix into a one
    ## dimensional array
    d <- f_distance2vector(as.matrix(dist(Data)))

[Package sincell version 1.18.0 Index]