How can I insert mathematical expressions for variable names in a
lattice parallel plot? I tried to implement mathematical expressions in
varnames, however, without success.
For example, neither
parallel(~iris[1:4] | Species, iris,
varnames=c("P[Width]", "Petal[length]", "alpha[Width]",
"Sepal[Length]"))
nor
parallel(~iris[1:4] | Species, iris,
varnames=c(expression(P[Width]), expression(Petal[length]),
expression(alpha[Width]),
expression(Sepal[Length])))
result in the desired labeling of the different axes of the parallel plot.
Thank you very much.
Regards,
Doris
--
---------------------------------------------------------------------------
Dr.-Ing. Doris Brockmann
Post-doctoral researcher
INRA - Laboratoire de Biotechnologie de l'Environnement (LBE)
Avenue des Etangs,
Narbonne, F-11100, France
Tel : (33)(0)4 68 42 51 88 (standard : 51 51)
Fax : (33)(0)4 68 42 51 60
email: brock...@supagro.inra.fr
http://www.montpellier.inra.fr/narbonne
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