R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(102.59,102.91,101.94,101.8,102.25,102.6,102.49,102.13,100.76,100.86,101.12,100.74,99.99,99.39,99.52,99.21,99.38,99.37,99.38,99.26,99.36,99.2,98.53,98.65,99.15,100.17,99.98,100.07,99.94,100.05,99.13,98.74,98.64,98.44,98.81,98.88,99.63,100.08,100.07,100.55,99.98,99.89,99.86,99.61,100.12,100.24,100.1,99.86,97.99,97.57,98.28,97.97,97.99,97.84,97.33,96.7,96.79,96.76,96.23,96.29,96.46,97.23,97.59,97.13,97.37,96.12,96.96,96.7,97,97.15,96.51,96.68)
> par20 = ''
> par19 = ''
> par18 = ''
> par17 = ''
> par16 = ''
> par15 = ''
> par14 = ''
> par13 = ''
> par12 = ''
> par11 = ''
> par10 = ''
> par9 = ''
> par8 = ''
> par7 = ''
> par6 = ''
> par5 = ''
> par4 = '12'
> par3 = ''
> par2 = ''
> par1 = 'Indexcijfer Pizza & Quiche '
> ylimmax = ''
> ylimmin = ''
> ylab = 'Indexcijfers'
> xlab = 'Maandelijks (01/2010 tot 12/2015)'
> main = 'Indexcijfer Pizza & Quiche '
> par4 <- '12'
> par3 <- ''
> par2 <- ''
> par1 <- 'Indexcijfer Pizza & Quiche '
> if (par4 != 'No season') {
+ par4 <- as.numeric(par4)
+ if (par4 < 4) par4 <- 12
+ }
> summary(x)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  96.12   97.58   99.31   99.11  100.10  102.90 
> n <- length(x)
> postscript(file="/var/wessaorg/rcomp/tmp/15oj81474918842.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/2w4cp1474918842.tab") 
> 
> try(system("convert tmp/15oj81474918842.ps tmp/15oj81474918842.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.479   0.056   0.540