R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- array(list(31,45,22,20,26,44,22,16,18,45,20,10,26,45,21,12,26,45,20,10,27,42,21,12,22,43,21,12,24,50,21,13,31,46,19,17,23,46,21,12,31,45,21,15,37,49,22,12,42,46,19,14,43,45,24,19,48,49,22,16,46,47,22,17,45,45,22,16,52,48,24,19,46,51,22,17,53,48,23,17,47,49,24,20,43,51,21,18,44,54,20,16,48,52,22,19,48,52,23,18,51,53,23,23,57,51,22,20,50,55,20,20,38,53,21,15,31,51,21,17,31,52,20,16,37,54,20,15,26,58,17,10,36,57,18,13,41,52,19,10,44,50,19,19,50,53,20,21,49,50,21,17,48,50,20,16,50,51,21,17,52,53,19,14,53,49,22,18,59,54,20,17,53,57,18,14,59,58,16,15,61,56,17,16,62,60,18,11,54,55,19,15,62,54,18,13,63,52,20,17,63,55,21,16,71,56,18,9,65,54,19,17,65,53,19,15,61,59,19,12,59,62,21,12,53,63,19,12,55,64,19,12,39,75,17,4,36,77,16,7,29,79,16,4,31,77,17,3,30,82,16,3,23,83,15,0,19,81,16,5,14,78,16,3,3,79,16,4,6,79,18,3,13,73,19,10,3,72,16,4,6,67,16,1,0,67,16,1),dim=c(4,72),dimnames=list(c('E.S','','P.T','','E.S.G','','Sp'),1:72))
Error in dimnames(data) <- dimnames : 
  length of 'dimnames' [1] not equal to array extent
Calls: array
Execution halted