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(551.91,551.46,550.12,549.95,548.01,548.92,548.92,549.06,547.07,546.5,544.95,544.23,544.23,541.6,541.37,540.43,540.47,540.52,540.52,539.7,540.89,540.51,537.43,538.14,538.14,537.74,540.33,540.02,539.21,539.84,539.84,537.3,536.27,536.75,536.21,536.99,536.99,536.57,536.91,536.97,540.45,542.42,542.42,542.98,540.19,537.16,537.35,537.03,537.03,536.27,534.71,537.12,537.07,537.33,537.33,538.79,539.24,537.17,536.46,532.3,532.3,532.89,533.47,532.54,533.8,534.15,534.15,534.15,534.28,535.63,534.21,533.78,533.78,534.55,536.93,536.09,533.91,533.99,533.99,533.76,532.5,529.5,528.62,528.7,521.27,521.19,519.43,516.81,516.78,515.45,516.22,517.01,518.19,516.79,516.87,514.1)
> par4 = '12'
> par3 = ''
> par2 = ''
> par1 = 'vitro keramische kookplaten'
> ylimmax = ''
> ylimmin = ''
> ylab = 'gemiddelde consumentenprijs'
> xlab = 'tijd (in maanden)'
> main = 'vitro keramische kookplaat'
> par4 <- '12'
> par3 <- ''
> par2 <- ''
> par1 <- 'vitro keramische kookplaten'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa P., (2012), Plot of univariate data series (v1.0.4) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_univariatedataseries.wasp/
> #Source of accompanying publication: 
> #
> if (par4 != 'No season') {
+ par4 <- as.numeric(par4)
+ if (par4 < 4) par4 <- 12
+ }
> summary(x)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  514.1   533.8   537.0   535.9   540.4   551.9 
> n <- length(x)
> postscript(file="/var/wessaorg/rcomp/tmp/1x7yz1422353785.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/29pr71422353785.tab") 
> 
> try(system("convert tmp/1x7yz1422353785.ps tmp/1x7yz1422353785.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.602   0.118   0.721