R version 3.3.2 (2016-10-31) -- "Sincere Pumpkin Patch"
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Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- array(list(18%,250,1,13%,250,3,16%,250,5,24%,300,1,22%,300,3,16%,300,5,20%,350,1,17%,350,3,11%,350,5),dim=c(3,9),dimnames=list(c('R','T','t'),1:9))
Error: unexpected ',' in "x <- array(list(18%,250,1,13%,"
Execution halted