Hello,
I am running cluster analysis, and am attempting to create a graph of my
clusters. I keep on getting an error that says that my figure margins are too
large.
d <- file.choose()
d <- read.csv(d,header=TRUE)
mydataS <- scale(d, center = TRUE, scale=TRUE)
#Converts mydataS from a matrix to a data frame
mydataS2 <- as.data.frame(mydataS)
#removes "coden" variable
myvars <- names(mydataS2) %in% c("coden")
mydataSNc <- mydataS2[!myvars]
#Determine number of clusters
wss <- (nrow(mydataSNc)-1)*sum(apply(mydataSNc,2,var))
for (i in 2:15)
wss[i] <- sum(kmeans(mydataSNc, centers=i)$withinss)
plot(1:15, wss, type="b", xlab="Number of Clusters",ylab="Within groups sum of
squares")
#perform Kmeans with 2 clusters
kmSNc2 <- kmeans(mydataSNc,2)
#print conponents of kmSNc2
print(kmSNc2)
#plot 2 clusters
plot(mydataSNc, col = kmSNc2$cluster)
#plot 2 centers
points(kmSNc2$centers,col = 1:2, pch = 8)
After the above bolded code, I get this following error:
> #plot 2 clusters
> plot(mydataSNc, col = kmSNc2$cluster)
Error in plot.new() : figure margins too large
> #plot 2 centers
> points(kmSNc2$centers,col = 1:2, pch = 8)
Error in plot.xy(xy.coords(x, y), type = type, ...) :
invalid graphics state
I am have just started using R, so I am most definitely a beginner. Any help
that could be offered would be greatly appreciated.
Thanks,
Karly Harrod
SULI Intern, Computational Research Division
khar...@lbl.gov
Lawrence Berkeley National Laboratory
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