R version 2.9.0 (2009-04-17) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0 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(93,92,91,89,87,86,87,89,90,90,91,93,93,87,89,92,98,92,92,87,92,98,101,102,102,90,87,92,105,90,88,83,98,109,118,118,115,107,101,111,128,115,111,105,120,132,135,142,139,127,113,130,143,139,137,134,139,157,152,153,147,132,117,123,139,134,134,128,118,144,140,151,144,135,122,124,146,146,147,148,132,161,159,173) > par4 = '12' > par3 = 'deze reeks geeft het aantal verkochte auto's weer per maand' Error: unexpected symbol in "par3 = 'deze reeks geeft het aantal verkochte auto's" Execution halted