R: Convert correlations to distances (necessary to do...

cor2dist {psych} | R Documentation

## Convert correlations to distances (necessary to do multidimensional scaling of correlation data)

### Description

A minor helper function to convert correlations (ranging from -1 to 1) to distances (ranging from 0 to 2). d = √{(2(1-r))}.

### Usage

    cor2dist(x)

### Arguments

`x` | If square, then assumed to be a correlation matrix, otherwise the correlations are found first.

### Value

dist: a square matrix of distances.

### Note

For an example of doing multidimensional scaling on data that are normally factored, see Revelle (in prep)

### Author(s)

William Revelle

### References

Revelle, William. (in prep) An introduction to psychometric theory with applications in R. Springer. Working draft available at http://personality-project.org/r/book/

[Package psych version 1.7.3.21 Index]