> tmp <- data.frame(matrix(nrow=0, ncol=32))
> tmp
[1] X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17
X18 X19
[20] X20 X21 X22 X23 X24 X25 X26 X27 X28 X29 X30 X31 X32
<0 rows> (or 0-length row.names)
> names(tmp) <- c(letters, LETTERS[1:6])
> tmp
[1] a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F
<0 rows> (or 0-length row.names)
>
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