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Missing Values

PreviousManaging ViewpointNextUser Interfaces

Last updated 4 years ago

All data types accept a special value indicating that the data is "missing". For example, in a survey if a question wasn't answered the answer field should be marked as "missing". Missing data is typically ignored by charts.

You can manage the handling of missing values in two ways:

  • Show them: Some charts allow missing values to be optionally included in the display. These views are: , , , and ; see these descriptions for examples. Enabling inclusion of missing values using the "Show Missing Values" property in the .

  • Label them: For views that can display missing values, the string used may be specified. The default string is "<NULL>". This may be specified in the Tables view in the .

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