r - Why does this code double transpose a vector - is this a noop? -

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i have legacy r code does:

b = t(a) c = t(b)

what code do? looks noop me. a vector constructed c(1:20).

edit: bonus points on how better.

have @ structure using str:

> str(a); str(b); str(c)  int [1:20] 1 2 3 4 5 6 7 8 9 10 ...  int [1, 1:20] 1 2 3 4 5 6 7 8 9 10 ...  int [1:20, 1] 1 2 3 4 5 6 7 8 9 10 ...

the final transpose operation sends vector a matrix 20 rows , 1 column. equivalent to:

c <- as.matrix(c(1:20))

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