Bubble chart
A bubble chart is a variation of a scatter chart in which the data points are replaced with bubbles, and an additional dimension of the data is represented in the size of the bubbles. Just like a scatter chart, a bubble chart does not use a category axis, because both horizontal and vertical axes are value axes. In addition to the X and Y values, a bubble chart plots Z (size) values. Categories form bubbles, where the number of bubbles is equal to the number of categories.
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Optional steps:
Additional actions in Steps:
Series step: Select a hierarchy from the list, then specify quantitative variables (typically measure) for the X and Y axes, and for the size of the bubble (Z). For example, if you want to see how the Discounts drive your Revenues, then select Measure from the hierarchy list and then specify Discounts on the horizontal axis and Revenue on the vertical axis. The bubble size is driven by “Units” to see the importance of each bubble.
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You can switch the chart color between blue and gray.
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Swap Chart Axes: To quickly swap the variables on the horizontal and vertical axes.