This article describes how to go from having a numeric variable represented in aggregate form (e.g., as an average),...
...or a scaled nominal or ordinal variable represented in full...
...to a state where you have merged numeric values into categories or bands (e.g., 0, 1-4, 5-10, 11+) for analysis purposes:
- A numeric variable. In Displayr, numeric variables are represented by a "2" symbol in the Data Sets tree.
- Or a scaled nominal or ordinal variable if there is text involved with the value label (eg: 0 – Not at all likely and 10 – Extremely Likely are the endpoints of your scale). If using this type of variable, it is prudent to check the Values to ensure they align correctly with the labels. To check the values select the variable from the Data set tree, and go to the object inspector > Properties > DATA VALUES > Values as per the picture below. You don’t want a value of 1 ascribed to 0 - Not at all likely and so forth (it should be a value of 0). You should change it so that the correct value aligns with the label.
OPTIONAL: If your variable is numeric, select the variable in the Data Sets tree, and from the toolbar, click Duplicate to create a copy of the variable. Select the new variable and change its structure by going to object inspector > INPUTS > Structure and selecting nominal (or ordinal).
- Drag your nominal variable from the Data Sets tree on to the page to make a table.
- Select all of the categories you want to band together (using Ctrl or Shift), and from the toolbar, go to Combine > As One Category to merge them into a single category.
- From the toolbar, click Rename to give the banding a correct label.