Create a zero-column or zero-row gtable with the given heights or widths respectively.
gtable_row_spacer(widths)gtable_col_spacer(heights)
gtable_col_spacer(heights)
A gtable object
unit vector of widths
unit vector of heights
Other gtable construction: gtable_col, gtable_matrix, gtable_row, gtable
gtable_col
gtable_matrix
gtable_row
gtable