{qualifier} DIMX $arrayname, gridmap(int; int; varstr)
{qualifier} DIMX $arrayname, gridmap(int; varstr; varstr)
The first variation indexes both the row and column by integer values; range is -10M to +100M for the rows and -10K to +100K for the columns. The second variation uses a numeric row index but an alphanumeric column index—i.e. column names in a result set, column headers in spreadsheet, etc.
