is.rectangular.RdReturns TRUE if the input object is rectangular.
is.rectangular(x)logical, returns TRUE if input object is rectangular.
is.rectangular(matrix(1:12, nrow=3))
#> [1] TRUE
is.rectangular(list(1:3,2:4))
#> [1] FALSE
is.rectangular(as.rectangular(list(1:3,2:4)))
#> [1] TRUE