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(66.857.2,64.722.8,68.489.6,71.342.9,63.542.5,69.425.0,58.927.9,61.009.0,66.837.0,66.147.6,65.982.3,65.527.5,65.914.6,59.189.9,66.211.4,66.400.8,60.167.7,64.547.9,57.706.2,58.642.6,60.082.1,63.414.8,66.044.0,57.628.5,62.838.8,55.758.6,61.004.5,66.173.4,57.489.0,59.552.2,57.061.8,55.895.3,56.314.7,61.232.8,60.014.1,57.685.4,60.403.1,52.349.7,55.693.3,65.676.1,54.898.8,55.518.2,53.779.1,52.340.9,55.704.4,60.330.3,52.837.4,55.388.1,60.383.4,52.070.3,54.077.0,62.887.8,49.212.8,57.722.0,53.936.8,46.991.0,54.984.2,56.485.1,51.277.8,53.596.4,54.252.5,49.413.0,53.213.2,58.695.3,48.723.5,54.510.0,49.454.1,46.136.6,54.622.5,50.583.0,53.224.3,53.056.4) Error: unexpected numeric constant in "x <- c(66.857.2" Execution halted