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Factor Analysis Biplot

2 messages · Brett Stansfield, Jari Oksanen

Brett Stansfield
# 
Dear R
When I go to do the biplot

biplot(eurofood.fa$scores, eurofood$loadings)
Error in 1:p : NA/NaN argument

 I think this is because the component loadings don't show values for some
variables

Loadings:
          Factor1 Factor2
RedMeat    0.561  -0.112 
WhiteMeat  0.593  -0.432 
Eggs       0.839  -0.195 
Milk       0.679         
Fish       0.300   0.951 
Cereals   -0.902  -0.267 
Starch     0.542   0.253 
Nuts      -0.760         
Fr.Veg    -0.145   0.325

So how can I get it to do a biplot? Is there a way for R to recognise
component loadings less than the cut off value??

Brett Stansfield
Jari Oksanen
#
On Fri, 2005-04-15 at 12:49 +1200, Brett Stansfield wrote:
Dear S,
Potential sources of error (guessing: no sufficient detail given in the
message):

- you ask scores from eurofood.fa and loadings from eurofood: one of
these names may be wrong.
- you did not ask scores in factanal (they are not there as default, but
you have to specify 'scores').
The cut values are there, but they are not displayed.  To see this, you
may try:

unclass(eurofood$loadings)
print(eurofuud$loadings, cutoff=0)

cheers, J