R version 2.15.3 (2013-03-01) -- "Security Blanket"
Copyright (C) 2013 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(-6.5	-2.67,-7.33	9.67,49.33	-6,-11	28.33,-8.33	12,9	-11.3,2.33	3,-12.3	-4.67,5.67	-5,-2	2.33,1.33	37.67,-13	7.5,-5.67	5,-4	30,2	15.33)
Error: unexpected numeric constant in "x <- c(-6.5     -2.67,-7.33     9.67"
Execution halted