@Override
		public Double getValue(ByteSequenceRowObject rowObject, Settings settings, Object data,
				ServiceProvider services) throws IllegalArgumentException {
			return rowObject.getPercentage();
		}
Merges the {@link DittedBitSequence}s corresponding to the selected rows.  
@return merged seqeuences ({@code null} if no sequences are selected)
Ghidra/Features/BytePatterns/src/main/java/ghidra/bitpatterns/gui/ByteSequenceTableModel.java