R version 2.15.2 (2012-10-26) -- "Trick or Treat"
Copyright (C) 2012 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(41086,39690,43129,37863,35953,29133,24693,22205,21725,27192,21790,13253,37702,30364,32609,30212,29965,28352,25814,22414,20506,28806,22228,13971,36845,35338,35022,34777,26887,23970,22780,17351,21382,24561,17409,11514,31514,27071,29462,26105,22397,23843,21705,18089,20764,25316,17704,15548,28029,29383,36438,32034,22679,24319,18004,17537,20366,22782,19169,13807,29743,25591,29096,26482,22405,27044,17970,18730,19684,19785,18479,10698)
> par4 = '12'
> par3 = 'In deze reeks vinden we over enkele jaren de inschrijvingen van de nieuwe personenwagens. Adhv deze grafiek wordt er een beeld gegeven wanneer er pieken en dalen te vinden zijn in welke maanden. '
> par2 = 'Excel bestand Blackboard'
> par1 = 'Inschrijvingen nieuwe personenwagens'
> ylimmax = ''
> ylimmin = ''
> ylab = 'value'
> xlab = 'tijd in maanden (jan 2000-dec 2005)'
> main = 'Univariate Data'
> par4 <- '12'
> par3 <- 'In deze reeks vinden we over enkele jaren de inschrijvingen van de nieuwe personenwagens. Adhv deze grafiek wordt er een beeld gegeven wanneer er pieken en dalen te vinden zijn in welke maanden. '
> par2 <- 'Excel bestand Blackboard'
> par1 <- 'Inschrijvingen nieuwe personenwagens'
> if (par4 != 'No season') {
+ par4 <- as.numeric(par4)
+ if (par4 < 4) par4 <- 12
+ }
> summary(x)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  10700   20220   24440   25250   29530   43130 
> n <- length(x)
> postscript(file="/var/wessaorg/rcomp/tmp/1qagf1353600404.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> if (par4=='No season') {
+ plot(x,col=2,type='b',main=main,xlab=xlab,ylab=ylab,xaxt='n')
+ axis(1,at=seq(1,n,10))
+ }
> if (par4!='No season') {
+ plot(x,col=2,type='b',main=main,xlab=xlab,ylab=ylab,xaxt='n')
+ axis(1,at=seq(1,n,par4))
+ grid(nx=0,ny=NULL,col='black')
+ abline(v=seq(1,n,par4),col='black',lty='dotted')
+ }
> dev.off()
null device 
          1 
> 
> #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,'Univariate Dataseries',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Name of dataseries',header=TRUE)
> a<-table.element(a,par1)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Source',header=TRUE)
> a<-table.element(a,par2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Description',header=TRUE)
> a<-table.element(a,par3)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Number of observations',header=TRUE)
> a<-table.element(a,length(x))
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/2843z1353600405.tab") 
> 
> try(system("convert tmp/1qagf1353600404.ps tmp/1qagf1353600404.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.851   0.173   1.002