R version 2.11.1 (2010-05-31)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(2.591.51,2.594.25,2.643.35,2.665.01,2.670.51,2.624.86,2.608.06,2.654.43,2.624.97,2.631.64,2.672.25,2.702.84,2.683.42,2.686.09,2.710.41,2.663.84,2.696.69,2.668.39)
Error: unexpected numeric constant in "y <- c(2.591.51"
Execution halted