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(45.7,81.9,56.8,65.1,86.2,35.1,133.8,34.5,69.9,98.3,86.7,58.2,83.6,83.5,112.3,134.3,30.0,44.5,120.1,43.4,199.4,68.1,99.8,69.5,71.3,167.8,66.3,41.9,57.2,72.3,96.5,172.1,25.8,105.1,92.2,109.3,101.7,29.1,34.6,46.7,82.0,34.4,72.7,44.4,31.0,64.0,65.4,64.5,153.8,48.8,25.0,37.2,40.8,78.4,112.4,122.7,82.9,67.6,78.4,65.7,44.9,80.9,38.8,46.1,60.0,53.9,123.5,69.5,74.2,47.0,60.9,51.4,18.7,88.1,65.3,46.0,115.6,25.8,48.1,202.3,9.2,56.3,71.6,93.0,82.3,95.4,61.9,0.0,103.4,99.2,96.7,56.9,57.6,65.2,71.7,89.2,70.7,35.4,140.5,45.4,53.9,69.9,101.9,89.3,70.7,72.4,67.6,43.3,62.9,57.1,68.2,47.1,43.1,64.5,73.1,37.7,29.1,105.0,98.0,80.8) > par4 = '12' > par3 = 'Maandelijkse neerslag '00-'09 in l/m²' Error: unexpected numeric constant in "par3 = 'Maandelijkse neerslag '00" Execution halted