v input view
Viewascol takes a view and returns it as if it were a column of columns. This is an operator for internal use mostly. The returned column is special in that each of its items may have a different type of elements.
Example:set v [view {A B:I C:F} def {1 2 3 4 5 6 7 8 9}]
view $v viewascol
{1 4 7} {2 5 8} {3.0 6.0 9.0}