Clear

Declaration: TDataTable.Clear;
The procedure Clear resets all elements of the table to its initial states:

data all cells set to zero values
column names "C-x" (x = column number)
row names "R-y" (y = row number)
cell states csNone
row attributes 0
column attributes 0
variable scale type    all variables (columns) set to stInterval (interval scale)
comment empty string