R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(120.46,117.84,122.56,120.32,126.39,132.83,127.19,120.82,118.9,122.75,115.41,111.96,110.52,111.3,112.81,114.42,121.32,119.49,117.23,118.08,118.57,119.99,119.75,116.66,115.87,118.98,121.74,121.53,118.01,113.77,114.73,115.76,120.41,122.34,118.99,118.74,118.61,118.62,119.91,122.11,124.95,132.71,131.68,133.1,133.98,133.45,137.98,134.1,128.06,126.7,132.5,134.92,142.98,141.79,144.7,152.2,154.44,161.73,159.42,149.23,148.5)
> par3 = ''
> par2 = ''
> par1 = 'Aankoop van Eurosuperbenzine loodvrij '95'
Error: unexpected numeric constant in "par1 = 'Aankoop van Eurosuperbenzine loodvrij '95"
Execution halted