R version 2.15.1 (2012-06-22) -- "Roasted Marshmallows" Copyright (C) 2012 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: i686-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(0 1 1 'E' 1 1 2 2 20 15 14 25 16 23 4 NA 20 NA 15 NA 14 NA 25 NA 16 NA 23 NA 4 NA 109 20 15 14 25 16 23 4 109 Error: unexpected numeric constant in "x <- c(0 1" Execution halted