If a range spans a single row over more than one column, this
parameter has the same effect as ROW. If the range spans a
single column over more than one row, this is the same as
COLUMN.
This is exactly the opposite of SHORT_SIDE. I.e., if
SHORT_SIDE has the same effect as ROW, LONG_SIDE will have the
same effect as COLUMN and the other way round.
If a range spans a single row over more than one column, this
parameter has the same effect as ROW. If the range spans a
single column over more than one row, this is the same as
COLUMN.
In case of a range spanning more than one column and row,
the shorter range of both should be used (e.g. a spreadsheet
range A1:B10 should treat columns as short side).
In case of a rectangular range, or a range that is composed
of more than one contiguous sub-regions, the short side cannot
be determined, thus
XDataSequence::generateLabel will return an
empty sequence.
This is exactly the opposite of SHORT_SIDE. I.e., if
SHORT_SIDE has the same effect as ROW, LONG_SIDE will have the
same effect as COLUMN and the other way round.
Uses the column name for label generation. A spreadsheet
range A1:A6 could, e.g., result in "Column A".
If a range consists of more than one column the result of
label generation may be empty. Of course, it could also
succeed with a string like "Columns A to B".
