Missing Value Hanlding is available in the following charts.
Pie / Ring
Error Bar (Summarized Data)
Map - Long/Lat
You can set to show or hide the unused factor levels.
At the Y Axis of Line chart, you have the following missing value handling options.
None - Do nothing.
Fill with NA - Fill the missing value with NA. The line will be intermittent.
Fill with Zero
Fill with Previous Value
Fill with Next Value
For "Fill with Previous Value" and "Fill with Next Value" options, you have the "Range to Fill Through" option. Following options are available.
End of Each Color - Value filling happens within each color range.
End of All - Value filling happens for the whole data range.