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(7.62,7.7,7.73,7.75,7.76,7.76,7.77,7.79,7.79,7.79,7.83,7.83,7.88,7.95,8.01,8.05,8.1,8.1,8.16,8.18,8.2,7.99,8.01,8.02,8.03,8.04,8.07,8.08,8.08,8.1,8.11,8.15,8.16,8.17,8.18,8.15,8.15,8.17,8.16,8.15,8.16,8.15,8.18,8.19,8.18,8.2,8.21,8.22,8.23,8.25,8.28,8.28,8.29,8.3,8.34,8.38,8.39,8.44,8.46,8.46,8.49,8.5,8.51,8.51,8.52,8.53,8.53,8.55,8.58,8.6,8.6,8.61)
> par4 = '12'
> par3 = 'Gemiddelde prijs van pizza's in restaurants'
Error: unexpected symbol in "par3 = 'Gemiddelde prijs van pizza's"
Execution halted