swissbanknotes | R Documentation |
Six variables measured on 100 genuine and 100 counterfeit old (printed before the second world war) Swiss 1000-franc bank notes (Flury and Riedwyl, 1988).
data(swissbanknotes)
A data frame with 200 observations on the following 7 variables.
length
Length of bill, mm
left
Width of left edge, mm
right
Width of right edge, mm
bottom
Bottom margin width, mm
top
Top margin width, mm
diagonal
Length of image diagonal, mm
class
1 = genuine, 2 = counterfeit
Flury, B. and Riedwyl, H. (1988). Multivariate Statistics: A practical approach. London: Chapman & Hall.
Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Problem 12.5.
library(rrcov)
data(swissbanknotes)
head(swissbanknotes)
plot(CovMcd(swissbanknotes[, 1:6]), which="pairs", col=swissbanknotes$class)
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