File:Swiss cmeans.svg
Summary
| Description |
English: Fuzzy C-Means result of the Swiss Banknote data (visualized on the first and second principal component) |
| Date | |
| Source | Own work |
| Author | Sigbert |
| SVG development | |
| Source code | R codelibrary("foreign")
library("e1071")
x <- read.spss("BANK2.sav", to.data.frame=T)
pca <- prcomp(data.matrix(x))
set.seed(0)
k <- 2
# k-Means
km <- kmeans(x, k)
mc <- c("red", "blue")
svg("swiss_kmeans.svg")
plot(pca$x[,1], pca$x[,2], pch=19, col=mc[km$cluster], cex=0.8,
xlab="First principal component", ylab="Second principal component",
main="k-Means")
center <- (km$centers-matrix(pca$center, nc=6, nr=2, byrow=T))%*%pca$rotation[,1:2]
points(center, col=mc, pch="+", cex=2)
points(center, col=mc, cex=2)
dev.off()
# Fuzzy C-Means
fcm <- cmeans(x, k)
size <- 0.8*apply(fcm$membership, 1, max)
svg("swiss_cmeans.svg")
plot(pca$x[,1], pca$x[,2], pch=19, col=mc[fcm$cluster], cex=size,
xlab="First principal component", ylab="Second principal component",
main="Fuzzy C-Means")
center <- (fcm$centers-matrix(pca$center, nc=6, nr=2, byrow=T))%*%pca$rotation[,1:2]
points(center, col=mc, pch="+", cex=2)
points(center, col=mc, cex=2)
dev.off()
|
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
