Description Usage Arguments Details Value Author(s) References See Also Examples
View source: R/biplot.pcaCoDa.R
Provides robust compositional biplots.
1 2 |
x |
object of class ‘pcaCoDa’ |
y |
... |
... |
arguments passed to plot methods |
The robust compositional biplot according to Aitchison and Greenacre (2002),
computed from (robust) loadings and scores resulting from pcaCoDa
, is performed.
The robust compositional biplot.
M. Templ, K. Hron
Aitchison, J. and Greenacre, M. (2002). Biplots of compositional data. Applied Statistics, 51, 375-392. \
Filzmoser, P., Hron, K., Reimann, C. (2009) Principal component analysis for compositional data with outliers. Environmetrics, 20 (6), 621–632.
1 2 3 4 5 6 7 8 9 10 11 12 | data(coffee)
p1 <- pcaCoDa(coffee[,-1])
p1
biplot(p1)
## with labels for the scores:
data(arcticLake)
rownames(arcticLake) <- paste(sample(letters[1:26], nrow(arcticLake), replace=TRUE),
1:nrow(arcticLake), sep="")
pc <- pcaCoDa(arcticLake, method="classical")
biplot(pc, xlabs=rownames(arcticLake))
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