R help - Jun 2012 - Error: figure margins too large

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
kharrod@lbl.gov
Lawrence Berkeley National Laboratory


	[[alternative HTML version deleted]]

Well, you didn't tell us anything about your data, but plot() has to create
space to draw ncol(mydataSNc)^2 plots. Depending on your graphics device, if
you have more than about 45 columns in mydataSNc, you will hit the limit -
although the plots will be illegible well before that.

----------------------------------------------
David L Carlson
Associate Professor of Anthropology
Texas A&M University
College Station, TX 77843-4352
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Karly Harrod
> Sent: Wednesday, June 27, 2012 12:10 PM
> To: r-help at r-project.org
> Subject: [R] Error: figure margins too large
> 
> 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
> kharrod at lbl.gov
> Lawrence Berkeley National Laboratory
> 
> 
> 	[[alternative HTML version deleted]]
> 
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