R version 2.12.1 (2010-12-16)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(2435,1379,1511,2021,1614,1680,1630,870,1877,2428,1711,127,3192,1934,2075,1700,1198,1582,1705,911,1817,1168,920,84,2254,1485,1886,1358,1167,1781,1218,779,1418,1641,1196,132,2926,1777,2094,1648,1646,1537,1917,977,1475,2124,1209,135,2917,1981,1398,1171,903,1390,1280,781,1828,1631,1063,186,2275,1342,1070,950,1121,1305,1586,548,1225,1419,880,124,2044,1143,897,1264,1326,1529,1373,587,1137,1426,1016,176)
> par4 = '12'
> par3 = 'De reeks geeft het aantel verkochte Volvo's in Nederland per maand weer.'
Error: unexpected symbol in "par3 = 'De reeks geeft het aantel verkochte Volvo's"
Execution halted