R version 3.0.1 (2013-05-16) -- "Good Sport"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(545688,544740,543702,541794,561369,560421,545688,535914,536862,536862,537807,539808,544740,538848,544740,539808,555474,562407,532968,525075,531915,530967,525075,526035,537807,535914,537807,537807,550635,552528,517194,517194,530967,524127,512355,517194,528981,523089,522141,509409,528021,531915,493635,492687,512355,501528,482901,490794,499527,501528,495636,483861,508368,508368,465234,462303,474075,452514,430848,437796,452514,440730,432849,416130,438741,439689,396570,395517,403410,378903,352395,363129,377850,362184,361236,345462,371010,375957,327798,317064,323904,297396,269943,278784,295410,275838,278784,267012,291516,294450,235572,231663,242397,213999,188451,197292,218850,193386,191397,171732,193386,200226,139344,139344,148173,124626,98118,111891,136398,109893,120732,105999,129558,137439,74559,69720,79506,55947,37332,45120)
> par4 = '12'
> par3 = 'Tijdreeks die de omzet uitdrukt van labo A.T.C. in euro van 01/2004 tot en met 31/2013 '
> par2 = '"niet gekend"'
> par1 = 'Omzet Labo A.T.C. (Euro)'
> ylimmax = ''
> ylimmin = ''
> ylab = 'Omzet (EURO)'
> xlab = 'Maand (01/2004 - 31/2013)'
> main = 'Omzet labo A.T.C (basisjaar 2004)'
> par4 <- '12'
> par3 <- 'Tijdreeks die de omzet uitdrukt van labo A.T.C. in euro van 01/2004 tot en met 31/2013 '
> par2 <- ''niet gekend''
Error: unexpected symbol in "par2 <- ''niet"
Execution halted