[R] Multi-dimensional scaling

[Jari Oksanen]

On Thu, 2004-09-16 at 17:28, Luis Rideau Cruz wrote:

> Is there any package/function in R which can perform multi-dimensional
> scaling?
> 
Yes.

Ripley's MASS package has isoMDS for non-metric multidimensional
scaling. Moreover, the same package has function sammon for another
variant. Some people regard SOM as a "crude form of" multidimensional
scalling, and that is -- surprise -- in MASS, too (but there are other
implementations). Vasic R (or its stats component) has principal
co-ordinates analysis, a.k.a. as metric multidimensional scaling.
Finally, R has a utility help.search which would show you most of these
and something else, too (perhaps xgvis in the xgobi, if that's installed
in your system). Try help.search("multidimensional scaling").

cheers, jari oksane
-- 
Jari Oksanen <jarioksa at sun3.oulu.fi>