Data - Bubble Plot
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You need three columns of equal length, in numeric or date/time format. You can also use up to three columns of categorical data for grouping and up to two columns of categorical data for paneling.

Minitab does not plot an observation in the following cases:

·    An x-value, y-value, or bubble size value is missing.

·    The bubble size value is less than or equal to zero.

More

For subsetting and grouping options, see Subset and Group Options. To change the display order for the legend, see Ordering text categories. To customize bubble attributes, including bubble size, see Edit Bubbles - Attributes.