R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- c(7175,7049,6923,6670,9225,9099,7175,5898,6024,6024,6150,6416,5645,4873,4240,4240,6670,6923,4999,2823,3974,3974,4873,5391,5265,3974,4620,4366,6543,6024,3974,2443,3848,4240,4620,5125,4100,3215,3595,3721,7049,7049,5125,4873,5645,5265,6290,7568,7821,6024,5518,4999,8466,8720,8074,8720,8593,7568,8720,9998,10516,8973,7948,8720,12048,13073,12820,13325,13199,11921,14098,14616,15375,13073,12174,13199,15641,17818,17299,17299,17553,16666,18970,18970,18578,16400,16793,17046,18716,20893,19349,20121,19475,19096,22045,21399,20500,19223,20500,21146,21918,22943,21918,22550,21779,21653,24854,25120,24095,22298,23829,24474,25246,26398,25246,26145,25753,24348,27296,27296)
> par4 = '12'
> par3 = 'Omzet van krantenwinkel 'Ochtend' tss jan '02 - dec '11'
Error: unexpected symbol in "par3 = 'Omzet van krantenwinkel 'Ochtend"
Execution halted