[R] Ordination of feature film data question
jarioksa at sun3.oulu.fi
Tue Mar 14 08:14:54 CET 2006
On Mon, 2006-03-13 at 07:50 +0000, Prof Brian Ripley wrote:
> `Ordination' is ecologists' terminology for multidimensional scaling.
> You will find worked examples in MASS (the book, see the R FAQ), and the
> two most commonly used functions, isoMDS and sammon, in MASS the package.
'Ordination' in ecologists' terminology also covers principal components
analysis and variants of correspondence analysis. Actually, when an
ecologist speaks about 'ordination', she most often means correspondence
analysis, which also sounds like a natural (though perhaps not the best)
choice for co-occurrence data in movies.
cheers, jari oksanen
Jari Oksanen <jarioksa at sun3.oulu.fi>
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