R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> par9 = 'variables'
> par8 = 'Learning Activities'
> par7 = 'all'
> par6 = 'bachelor'
> par5 = 'female'
> par4 = 'FALSE'
> par3 = 'FALSE'
> par2 = 'ALL'
> par1 = 'ward'
> ylab = 'height'
> xlab = 'cases or variables'
> main = 'Dendrogram'
> par9 <- 'variables'
> par8 <- 'Learning Activities'
> par7 <- 'all'
> par6 <- 'bachelor'
> par5 <- 'female'
> par4 <- 'FALSE'
> par3 <- 'FALSE'
> par2 <- 'ALL'
> par1 <- 'ward'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa, P., (2012), Hierarchical Clustering (v1.0.4) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_hierarchicalclustering.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #
> x <- as.data.frame(read.table(file='http://www.wessa.net/download/utaut.csv',sep=',',header=T))
> x$U25 <- 6-x$U25
> if(par5 == 'female') x <- x[x$Gender==0,]
> if(par5 == 'male') x <- x[x$Gender==1,]
> if(par6 == 'prep') x <- x[x$Pop==1,]
> if(par6 == 'bachelor') x <- x[x$Pop==0,]
> if(par7 != 'all') {
+ x <- x[x$Year==as.numeric(par7),]
+ }
> cAc <- with(x,cbind( A1, A2, A3, A4, A5, A6, A7, A8, A9,A10))
> cAs <- with(x,cbind(A11,A12,A13,A14,A15,A16,A17,A18,A19,A20))
> cA <- cbind(cAc,cAs)
> cCa <- with(x,cbind(C1,C3,C5,C7, C9,C11,C13,C15,C17,C19,C21,C23,C25,C27,C29,C31,C33,C35,C37,C39,C41,C43,C45,C47))
> cCp <- with(x,cbind(C2,C4,C6,C8,C10,C12,C14,C16,C18,C20,C22,C24,C26,C28,C30,C32,C34,C36,C38,C40,C42,C44,C46,C48))
> cC <- cbind(cCa,cCp)
> cU <- with(x,cbind(U1,U2,U3,U4,U5,U6,U7,U8,U9,U10,U11,U12,U13,U14,U15,U16,U17,U18,U19,U20,U21,U22,U23,U24,U25,U26,U27,U28,U29,U30,U31,U32,U33))
> cE <- with(x,cbind(BC,NNZFG,MRT,AFL,LPM,LPC,W,WPA))
> cX <- with(x,cbind(X1,X2,X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,X13,X14,X15,X16,X17,X18))
> if (par8=='ATTLES connected') x <- cAc
> if (par8=='ATTLES separate') x <- cAs
> if (par8=='ATTLES all') x <- cA
> if (par8=='COLLES actuals') x <- cCa
> if (par8=='COLLES preferred') x <- cCp
> if (par8=='COLLES all') x <- cC
> if (par8=='CSUQ') x <- cU
> if (par8=='Learning Activities') x <- cE
> if (par8=='Exam Items') x <- cX
> ncol <- length(x[1,])
> for (jjj in 1:ncol) {
+ x <- x[!is.na(x[,jjj]),]
+ }
> par3 <- as.logical(par3)
> par4 <- as.logical(par4)
> if (par3 == TRUE){
+ dum = xlab
+ xlab = ylab
+ ylab = dum
+ }
> if (par9=='variables') {
+ x <- t(x)
+ } else {
+ ncol <- length(x[1,])
+ colnames(x) <- 1:ncol
+ }
> hc <- hclust(dist(x),method=par1)
> d <- as.dendrogram(hc)
> str(d)
--[dendrogram w/ 2 branches and 8 members at h = 133271]
  |--[dendrogram w/ 2 branches and 6 members at h = 5902]
  |  |--leaf "AFL" 
  |  `--[dendrogram w/ 2 branches and 5 members at h = 2140]
  |     |--[dendrogram w/ 2 branches and 2 members at h = 604]
  |     |  |--leaf "BC" 
  |     |  `--leaf "MRT" 
  |     `--[dendrogram w/ 2 branches and 3 members at h = 960]
  |        |--leaf "NNZFG" 
  |        `--[dendrogram w/ 2 branches and 2 members at h = 498]
  |           |--leaf "LPM" 
  |           `--leaf "LPC" 
  `--[dendrogram w/ 2 branches and 2 members at h = 29493]
     |--leaf "W" 
     `--leaf "WPA" 
> mysub <- paste('Method: ',par1)
> postscript(file="/var/wessaorg/rcomp/tmp/1mz7w1335785718.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> if (par4 == TRUE){
+ plot(d,main=main,ylab=ylab,xlab=xlab,horiz=par3, nodePar=list(pch = c(1,NA), cex=0.8, lab.cex = 0.8),type='t',center=T, sub=mysub)
+ } else {
+ plot(d,main=main,ylab=ylab,xlab=xlab,horiz=par3, nodePar=list(pch = c(1,NA), cex=0.8, lab.cex = 0.8), sub=mysub)
+ }
> dev.off()
null device 
          1 
> if (par2 != 'ALL'){
+ if (par3 == TRUE){
+ ylab = 'cluster'
+ } else {
+ xlab = 'cluster'
+ }
+ par2 <- as.numeric(par2)
+ memb <- cutree(hc, k = par2)
+ cent <- NULL
+ for(k in 1:par2){
+ cent <- rbind(cent, colMeans(x[memb == k, , drop = FALSE]))
+ }
+ hc1 <- hclust(dist(cent),method=par1, members = table(memb))
+ de <- as.dendrogram(hc1)
+ postscript(file="/var/wessaorg/rcomp/tmp/23bu71335785718.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
+ if (par4 == TRUE){
+ plot(de,main=main,ylab=ylab,xlab=xlab,horiz=par3, nodePar=list(pch = c(1,NA), cex=0.8, lab.cex = 0.8),type='t',center=T, sub=mysub)
+ } else {
+ plot(de,main=main,ylab=ylab,xlab=xlab,horiz=par3, nodePar=list(pch = c(1,NA), cex=0.8, lab.cex = 0.8), sub=mysub)
+ }
+ dev.off()
+ str(de)
+ }
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Summary of Dendrogram',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Label',header=TRUE)
> a<-table.element(a,'Height',header=TRUE)
> a<-table.row.end(a)
> num <- length(x[,1])-1
> for (i in 1:num)
+ {
+ a<-table.row.start(a)
+ a<-table.element(a,hc$labels[i])
+ a<-table.element(a,hc$height[i])
+ a<-table.row.end(a)
+ }
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/37ze11335785718.tab") 
> if (par2 != 'ALL'){
+ a<-table.start()
+ a<-table.row.start(a)
+ a<-table.element(a,'Summary of Cut Dendrogram',2,TRUE)
+ a<-table.row.end(a)
+ a<-table.row.start(a)
+ a<-table.element(a,'Label',header=TRUE)
+ a<-table.element(a,'Height',header=TRUE)
+ a<-table.row.end(a)
+ num <- par2-1
+ for (i in 1:num)
+ {
+ a<-table.row.start(a)
+ a<-table.element(a,i)
+ a<-table.element(a,hc1$height[i])
+ a<-table.row.end(a)
+ }
+ a<-table.end(a)
+ table.save(a,file="/var/wessaorg/rcomp/tmp/4cjuc1335785718.tab") 
+ }
> 
> try(system("convert tmp/1mz7w1335785718.ps tmp/1mz7w1335785718.png",intern=TRUE))
character(0)
> try(system("convert tmp/23bu71335785718.ps tmp/23bu71335785718.png",intern=TRUE))
convert: unable to open image `tmp/23bu71335785718.ps': No such file or directory @ blob.c/OpenBlob/2480.
convert: missing an image filename `tmp/23bu71335785718.png' @ convert.c/ConvertImageCommand/2838.
character(0)
Warning message:
running command 'convert tmp/23bu71335785718.ps tmp/23bu71335785718.png' had status 1 
> 
> 
> proc.time()
   user  system elapsed 
  0.594   0.143   0.732