Show Points Shows or hides the data points on the graph. Show Controls Drop Lines Draws lines from each point to the plane created by the x and z variables that you selected on the launch window. Connect Points Connects the points with a line. Points can be connected on the data as a whole or in groups. You can also group data by a specific variable. Normal Contour Ellipsoids Ellipsoid Coverage Changes the size of normal contour ellipsoids. Type a value between 0 and 1, where the greater the value creates a bigger the ellipsoid. The actual values “0” and “1” produce no ellipsoid, so a warning appears if you try to use those values. This option only appears after you add a normal contour ellipsoid to the 3D scatterplot. Ellipsoid Transparency Changes the surface of normal contour ellipsoids. The greater the value, the more opaque the ellipsoid. This option only appears after you add a normal contour ellipsoid to the 3D scatterplot. Nonpar Density Contour Drop Line Thickness Changes the width of drop lines. This option only appears after you add drop lines to the 3D scatterplot. Principal Components Calculates principal components on all variables. This changes the axes of the plot to have principal component scores. Biplot rays are displayed by default. You can remove them by selecting Biplot Rays from the red triangle menu. For details about principal components, see the Multivariate Methods book. Std Prin Components Calculates principal components (as with the Principal Components option) but scales the principal component scores to have unit variance. If this option is not selected, the scores have variance equal to the corresponding eigenvalue. With standardized principal components, the correlation between the variables and the principal component scores is equal to the values in the eigenvector. This helps you quickly assess the relative importance of the variables. For details, see the Multivariate Methods book. Rotated Components Specifies the number of factors that you want to rotate and the rotation method. You rotate components to better align the directions of the factors with the original variables so that the factors might be more interpretable. For details, see the Multivariate Methods book. Biplot Rays Shows or hides biplot rays that correspond to the principal components. You must have already selected Principal Components, Std Prin Components, or Rotated Components for this option to appear. Show Ray Labels Shows or hides labels for the biplot rays. You must have already selected Biplot Rays for this option to appear. Remove Prin Comp Removes principal components, standardized principal components, and rotated components from the scatterplot 3D report. The 3D scatterplot reverts to its original display before principal components were selected. This option, however, does not remove any saved principal components from the data table. This option only appears after you add principal, standard, or rotated components to the 3D scatterplot. Save Prin Components Saves the specified number of current principal component scores as new columns in the current data table. These columns also include the formulas used for the principal components. For n variables in the components list, n principal component columns are created and named Prin1, Prin2, ... Prinn. This option only appears after you add principal, standard, or rotated components to the 3D scatterplot. Save Rotated Components Saves all rotated component scores as columns in the current data table. These columns also include the formulas that were used. If you requested n rotated components, then n rotated component columns are created and named Rot1, Rot2, ... Rotn. This option only appears after you add rotated components to the 3D scatterplot. Script
 • Coverage changes the portion of data points covered by the ellipsoid. The larger the value, the bigger the ellipsoid.
 • Transparency changes the surface of the ellipsoid from transparent to opaque. The larger the value, the more opaque the ellipsoid.
You display and remove normal contour ellipsoids by selecting and deselecting Normal Contour Ellipsoids from the red triangle menu.
The examples in this section use the Iris.jmp sample data table, which includes measurements of sepal length, sepal width, petal length, and petal width for three species of iris.
Related Information
 • Example of an Ungrouped Normal Contour Ellipsoid
 • Example of Grouped Normal Contour Ellipsoids
Related Information
 • Example of a Grouped Nonparametric Density Contour
The Density Contour Controls Window
 • Density level represents the volume and density of the points. As the contours go from smaller to larger values, the contours cover less volume but more dense areas. A 0.9 contour represents the 10% densest part of the total, where the points are closest together. Click and drag the slider below “Contour Quantile,” or enter a value next to the slider.
 • Transparency changes the surface of density contours. The greater the value, the more opaque the contour. Enter a value in the box.
 • Color changes the color of the contour. Click the colored box and select a different color. (This option only appears for ungrouped density contours.)
To remove points from a 3D scatterplot, select Show Points from the red triangle menu. You can further optimize the contours by changing their size, color, and transparency. See Descriptions of the Scatterplot 3D Options for details.
Example of Optimizing a Dense Nonparametric Density Contour
 Show Legend Shows and hides the color legend for the 3D scatterplot. Note: This option requires the Coloring role. Reset Returns the orientation of the scatterplot to its original state. Settings Hide Lights Border Shows and hides a border that displays the lights. The lights highlight different portions of the 3D scatterplot. Right-click a light to turn it on or off and to change the color. Wall Color Changes the color of the 3D scatterplot. Background Color Changes the color surrounding the 3D scatterplot. Rows Use Hardware Acceleration Turns hardware acceleration on or off for machines that support acceleration. This option might display the scatterplot faster. If not, try updating your graphics drivers. Show ArcBall Shows and hides a globe around the 3D scatterplot. This option helps you visualize the rotation of the scatterplot. Select whether you want the ArcBall to appear always, only when you drag the scatterplot, or never.
To customize properties such as the marker size, text size, and grid lines, right-click the 3D scatterplot and select Settings. The Settings window appears. As you modify the settings, a preview appears on the 3D scatterplot.
The Scatterplot 3D Settings Window
 • Move the sliders left to decrease the selected property or to the right to increase the selected property.
 • To move the Settings window around the scatterplot, click and drag the top portion of the window.
 Reset Resets the default settings. Done Closes the window. Walls Adds or removes the 3D scatterplot walls. Without walls, the background color of the 3D scatterplot is displayed. Grids Shows or hides the coordinate lines. Axes Shows or hides the variable names that appear above each axis. Box Shows or hides the box. Without the box, the 3D scatterplot is displayed as an open plot. Zoom Enlarges or shrinks the 3D scatterplot. Orthographic Changes the view of the scatterplot from 3-dimensional to an orthographic projection. In the orthographic view, the walls of the scatterplot do not converge to a vanishing point. This means that you can compare near and far distances and see the structure between data points. Perspective Increases or decreases the perspective. Large values create a view that is unnaturally large and visually disorienting. In this case, you need to resize the scatterplot window to show the entire plot. Marker Size Increases or decreases the size of the data point markers. Marker Quality Increases and decreases the data marker quality. For example, when you increase the marker quality, some markers have an opaque center. Other symbol markers are formatted in bold. Increase the zoom to see these changes in quality. Marker Transparency Increases or decreases the transparency of the data markers. Text Size Increases or decreases the text size. Line Width Changes the width of the coordinate and axes lines.