R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(22943,21413,20631,19775,17506,20688,32631,34062,29159,25871,23719,25638,27596,28006,27662,26655,25213,28434,40388,42758,37956,33490,31578,34766,32324,32046,29565,28284,26366,27530,39728,41528,36458,32301,28985,29118,29249,28036,26326,24942,23280,23969,35948,37639,34327,30133,27549,27990,30437,30464,28471,26882,25806,26465,36416,42870,40489,36645,33841,33496,34504,34699,33322,32160,30173,30782,43062,46223,45191,40671,37251,36870)
> par4 = '12'
> par3 = 'Deze cijferreeks laat zien hoeveel niet-werkende werkzoekenden (nwwz) er zijn in het Vlaams Gewest per maand over een periode van 3 jaar voor de leeftijdsklasse van 20 tot 25 jaar.'
> par2 = 'Belgostat'
> par1 = 'Niet-werkende werkzoekenden Vl Gewest'
> ylimmax = ''
> ylimmin = ''
> ylab = 'Aantal nwwz*'
> xlab = 'Aantal observaties 01/2008 – 12/2013'
> main = 'Niet-werkende werkzoekenden Vl Gewest'
> if (par4 != 'No season') {
+ par4 <- as.numeric(par4)
+ if (par4 < 4) par4 <- 12
+ }
> summary(x)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  17510   26830   30300   31240   35060   46220 
> n <- length(x)
> postscript(file="/var/wessaorg/rcomp/tmp/1qc8z1416427722.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/23fi51416427722.tab") 
> 
> try(system("convert tmp/1qc8z1416427722.ps tmp/1qc8z1416427722.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.505   0.119   0.625