R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- array(list(6.56,C,4.89,T1,3.51,T2,5.98,T1S1,6.02,T1S2,5.26,T2S1,5.43,T2S2,5.66,T1U1,5.89,T1U2,4.98,T2U1,5.02,T2U2),dim=c(2,11),dimnames=list(c('Chlorophyll-a'),1:11))
Error in as.vector(data) : object 'T1' not found
Calls: array -> as.vector
Execution halted