R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- array(list(High,Medium,Low,Male,4,7,,10,,5,9,,12,,6,8,,11,,5,12,,9,Female,,6,13,,12,,6,15,,13,,4,12,,10,,4,12,,13),dim=c(3,10),dimnames=list(c('Response','Treatment'),1:10))
Error in array(list(High, Medium, Low, Male, 4, 7, , 10, , 5, 9, , 12,  : 
  object 'High' not found
Execution halted