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(99.78,99.8,99.88,99.74,100.15,100.27,100.26,100.36,100.37,100.54,99.8,99.82,99.82,99.82,99.67,99.78,99.44,99.61,99.71,99.71,99.77,99.77,99.89,99.96,100.02,100,100.04,99.99,99.77,99.77,99.93,99.9,100.01,100.08,100.21,100.28,100.48,100.72,100.74,100.88,101.03,101.47,101.46,101.46,101.45,101.74,102.41,102.54,102.67,102.87,102.9,102.88,102.82,102.94,102.97,103.01,103.11,103.21,104.66,104.79)
> par4 = 'Unknown'
> par3 = 'FALSE'
> par2 = 'grey'
> par1 = ''
> xlab = 'x'
> main = 'Nieuwe -en tweedehandsauto's'
Error: unexpected symbol in "main = 'Nieuwe -en tweedehandsauto's"
Execution halted