My question is about dudi.acm and $c1.
Output from a dudi.acm:
class: acm dudi
vector length mode content
1 $cw 73 numeric column weights
2 $lw 810 numeric row weights
3 $eig 52 numeric eigen values
data.frame nrow ncol content
1 $tab 810 73 modified array
2 $li 810 3 row coordinates
3 $l1 810 3 row normed scores
4 $co 73 3 column coordinates
5 $c1 73 3 column normed scores
other elements: cr
What is c1? It says 'column normed scores' but I think it is coordinates.
I can plot c1, for example like this: 's.arrow(banque.acm$c1)'. So, $c1
must be coordinates?
I guess, what I want is just the coordinates (to plot a nice figure
with column dots).
And perhaps all I need is $co. But I am curious... what is $c1?
I have tried to read helpfiles in R and documentation on the net, for
example Google ("ade4" and "column normed scores").
Dept. of Educational Measurement, Umea University
Address: Umea Univ., BVM, SE-90187 Umea
Telephone: +46 (0)90-786 95 26
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