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(5115,5105,5094,5074,5280,5270,5115,5012,5022,5022,5032,5053,5053,4960,4919,4960,5105,5084,4888,4722,4691,4629,4671,4722,4702,4660,4578,4660,4733,4712,4474,4371,4268,4185,4175,4237,4154,4123,4092,4268,4288,4185,3906,3782,3586,3503,3544,3606,3606,3555,3544,3710,3844,3782,3575,3472,3255,3121,3224,3327,3327,3193,3183,3358,3472,3431,3224,3090,2800,2687,2728,2904,2914,2656,2749,2976,3079,3017,2738,2542,2315,2139,2211,2366,2325,2098,2170,2397,2521,2449,2170,2046,1860,1664,1695,1850,1870,1684,1715,1974,2036,1932,1550,1354,1095,837,920,1033,1013,816,930,1209,1333,1271,1023,827,620,382,424,496)
> par4 = '12'
> par3 = 'De omzet van de verkoop van de plant hosta 'blue angel''
Error: unexpected symbol in "par3 = 'De omzet van de verkoop van de plant hosta 'blue"
Execution halted