Bubble Plot Results
A bubble plot graphs the approximate location of records along x,y axes, where the x-axis represents actual results and the y-axis represents predicted results. A bubble plot is displayed whenever the goal variable is Continuous.
Because this data is binned for charting, each bubble on the graph represents a range of one or more records that have predicted and actual results near the bubble location. For each bubble, a tooltip displays the value at the center of the range for both actual and predicted results in the bubble, and the number of records represented by the bubble.
The size of each bubble is approximated to represent the relative number of results at each location. Bubbles of the same size do not necessarily represent the same number of records.
The bubble plot graph uses color to show whether results are over-predicted, accurately-predicted, or under-predicted as follows:
Highly over-predicted – Includes predicted results that are 75% above the actual value.
Over-predicted – Includes predicted results that are 25 to 75% over the actual value.
Accurate – Includes predicted results that are within 25% of the actual value.
Under-predicted – Includes predicted results that are 25 to 75% below the actual value.
Highly under-predicted – Includes predicted results that are 75% below the actual value.
 | The predicted and actual results are displayed in the tooltips as double values, rather than integers. These results are binned for charting and the data points on the chart do not represent individual records. Each point represents a range and the tooltip displays the predicted and actual values at the center of that range. |
A pie chart is displayed next to the bubble plot. When you mouse over each section of the chart, a tooltip displays the percentage of records in the dataset that fall into that category of accuracy. The pie chart simply provides another visualization of the model results.