For dynamic bubble plots, you might specify only a Time variable and no ID variable. The resulting bubble plot contains a single moving bubble that tracks the series as the Time value changes.
1.
Open the PopAgeGroup.jmp sample data table.
2.
Select Graph > Bubble Plot.
3.
Select Portion60+ and click Y.
4.
Select Portion 0-19 and click X.
5.
Select Year and click Time.
6.
Select Region and click Coloring.
7.
The Initial Report Window with a Time Variable
9.
From the red triangle menu, select Trail Bubbles > All and Trail Lines > All.
Animated Bubble Plot over Time
For static bubble plots, you might specify one or two ID variables and no Time variable. The resulting bubble plot contains a bubble at each ID value. Note that although this bubble plot is static, you can perform splitting on bubbles.
1.
Open the PopAgeGroup.jmp sample data table.
2.
Select Graph > Bubble Plot.
3.
Select Portion60+ and click Y.
4.
Select Portion 0-19 and click X.
5.
Select Region and Country and click ID.
6.
Select Region and click Coloring.
7.
Initial Report Window with ID Variables
9.
Click Split.
Splitting the North America Bubble
This example uses the SATByYear.jmp sample data table, which contains SAT verbal and math test scores for a selection of the US population in 2004.
1.
Open the SATByYear.jmp sample data table.
2.
Select Graph > Bubble Plot.
3.
Select SAT Verbal and click Y.
4.
Select SAT Math and click X.
5.
Select State and click ID.
6.
Select % Taking (2004) and click Sizes.
7.
The Static Bubble Plot Report Window
From The Static Bubble Plot Report Window, you draw the following conclusions:
2.
3.
Select Region, and click OK.
4.
Click on the ID2 link.
5.
Select State, and click OK.
Example of Bubble Plot Grouped by Region and State
7.
Click Split.
Now the bubbles are split by the secondary ID variable, which is State. You now see each state within the Southwest region.
Example of Southwest Region Split by State
From Example of Southwest Region Split by State, you see that there is significant variation between the scores from the Southwest states.
8.
Click Combine to combine the southwest states again.
10.
Click Split.
Example of New England Region Split by State
This example uses the blsPriceData.jmp sample data table, which shows the price of commodities over several years. Because the value of the US dollar changes over time, a column named Price/Price2000 shows the ratio of a commodity’s price at any given time to the price in the year 2000.
1.
Open the blsPriceData.jmp sample data table.
2.
Select Graph > Bubble Plot.
3.
Select Series and click Y.
4.
Select Price/Price2000 and click X.
5.
Select date and click Time.
6.
Static Example of Animated Bubbles
9.