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(103.77,103.82,103.86,103.9,103.63,103.65,103.7,103.77,103.94,104.03,104.03,104.29,104.35,104.67,104.73,104.86,104.05,104.15,104.27,104.33,104.41,104.4,104.41,104.6,104.61,104.65,104.55,104.51,104.74,104.89,104.91,104.93,104.95,104.97,105.16,105.29,105.35,105.36,105.45,105.3,105.73,105.86,105.85,105.95,105.97,106.15,105.37,105.39,105.39,105.38,105.23,105.34,104.98,105.16,105.27,105.27,105.33,105.33,105.46,105.54,105.59,105.57,105.62,105.57,105.33,105.34,105.5,105.47,105.59,105.65,105.8,105.87)
> par4 = '12'
> par3 = 'Prijzen'
> par2 = 'Belgostat'
> par1 = 'Nieuwe en tweedehands auto's'
Error: unexpected symbol in "par1 = 'Nieuwe en tweedehands auto's"
Execution halted