R version 3.2.2 (2015-08-14) -- "Fire Safety"
Copyright (C) 2015 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(2500,2210,2526,2249,2024,2091,2045,1882,1831,1964,1763,1688,2149,1823,2094,2145,1790,1996,2097,1795,1963,2041,1746,2210,2949,3110,3716,3014,1515,1498,1366,1607,1757,1623,1451,1765)
> par4 = '12'
> par3 = ''
> par2 = ''
> par1 = 'Cijferreeks ruwe data "gebouwen"'
> ylimmax = ''
> ylimmin = ''
> ylab = ''
> xlab = ''
> main = 'Aantal gebouwen '
> par4 <- '12'
> par3 <- ''
> par2 <- ''
> par1 <- 'Cijferreeks ruwe data 'gebouwen''
Error: unexpected symbol in "par1 <- 'Cijferreeks ruwe data 'gebouwen"
Execution halted