Classify Nodes from Dataset - Map and Group

Classify Nodes from Dataset - Map and Group


This dialog box is displayed when you click the Map and Group button to:

Refer to Using the Classify Nodes from Dataset Wizard for information about launching this dialog.

Options on this dialog


Column  This displays the attribute you have selected to map or group. You cannot change the attribute—to select another attribute, you must click OK or Cancel to return to the Wizard.

On the Mapping tab:

On the Grouping tab:

Grouping Description
Equal Interval The difference between the minimum and maximum values in each group is equal. For example, if your survey has respondents aged between 18 and 61, you can use this option to create four groups of equal interval:
  • 18-28 (11 values)
  • 29-39 (11 values)
  • 40-50 (11 values)
  • 51-61 (11 values)
If the values cannot be equally divided, then NVivo adjusts the grouping to make the intervals as equal as possible.
Standard Deviation The values are grouped based on how they vary from the average value (mean). For example, if the average age of your respondents is 30 (with a standard deviation of 9), then you could use this option to create the following groups:
  • 18-20 (up to two standard deviations below average)
  • 21-29 (up to one standard deviation below average)
  • 30-38 (up to one standard deviation above average)
  • 39-47 (up to two standard deviations above average)
  • 48-56 (up to three standard deviations above average)
  • 57-61 (more than three standard deviations above average)
User-defined Interval Select this option, if you want to create your own groupings and specify the start and end values for each group

If you select Equal Interval, you can:

If you select Standard Deviation, you can:

If you select User-defined Interval, you can create your own groupings and specify the start and end values for each group: