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)

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> x <- array(list(26,20,19,,19,20,25,,25,22,26,22,,17,,22,19,24,26,,21,13,,26,,20,22,,14,21,7,,23,17,25,25,19,,20,23,,22,22,21,,15,,20,,22,18,,20,,28,22,18,23,20,,25,,26,15,,17,,23,21,,13,18,19,22,16,,24,18,20,24,,14,,22,24,18,21,,23,17,,22,,24,,21,22,16,21,,23,,22,24,24,16,16,,21,,26,,15,,25,18,20,,17,,25,24,17,19,20,15,,27,22,23,16,19,,25,19,,19,,26,21,,20,24,22,,20,18,,18,24,24,22,23,22,20,18,25,,18,16,20,,19,15,19,19,16,17,28,,23,25,20,,17,,23,16,,23,,11,,18,,24,23,21,,16,,24,23,18,20,9,,24,25,20,,21,,25,,22,,21,21,22,27,,24,,24,,21,18,16,22,20,,18,20,),dim=c(1,161),dimnames=list(c('I1M','I1F'),1:161))
Error in list(26, 20, 19, , 19, 20, 25, , 25, 22, 26, 22, , 17, , 22,  : 
  argument 4 is empty
Calls: array -> as.vector
Execution halted