Bubble Chart (3+1D)

Context

Bubble Chart (3+1D) is a three-dimensional version of the Bubble Chart (2+1D).

You can access the Bubble Chart (3+1D) function in multiple ways:
- Main Menu > Data > Charts > Bubble Chart (3+1D).
- Node Context Menu > Charts > Bubble Chart (3+1D).
In the Parameter panel, select the variables from the drop-down lists:
- Pick the Variable on x.
- Pick the Variable on y.
- Pick the Variable on z.
- Pick the Variable for Bubble Size.
- If you had nodes selected when you opened the Charts window, the variables in the dropdown menu will be restricted to that selection.
Apply Point Jittering, if appropriate:
- The Point Jittering slider allows you to add random noise to the position of each point to reduce overlap when many observations have the same coordinates, which is the case with integer variables, for instance.
- The Point Jittering remains the same for all zoom levels.
Choose the Point Size.
Click Show.

At the top of the chart window, there is an Information Panel that reports the total number of plotted points.
In all two-dimensional plots, the Information Panel also shows the cursor coordinate. Here, however, the x, y, and z-values are only shown for the point over which you hover with your cursor.
To zoom in to the chart, scroll up with the mouse wheel. To zoom out, scroll down with the mouse wheel. This scroll direction is based on the default Windows scroll behavior. For Mac users, the inverse directions apply.
Alternatively, you can use the zoom icons at the top of the window:
To return to the default zoom level, click the Default Zoom icon.
If you click on a particular point, a pop-up window shows all the corresponding records. Note that a larger point size will make it easier to click on a point of interest.
You can rotate the plot by clicking and holding the left mouse button and then dragging the cursor until the desired view is achieved. By default, this rotation mode is active. If you need to return to this mode, click the Rotate 3D icon.
To move the plot in parallel to the viewing surface (your screen), click the Move icon at the top of the window. Then, click and hold the left mouse button and drag the plot into the desired position.
To return to the default view, which recenters the plot on the screen, click the Center icon.