Example of an Overlay Plot
This example shows you how to plot two variables on a single y-axis.
1. Select Help > Sample Data Library and open Spring.jmp.
The table has a row for each day in the month of April. The column named April is the numeric day of the month, and the remaining columns are various weather statistics.
2. Select the Overlay Plot command from the Graph menu.
3. Select Humid1:PM and Humid4:PM and click Y.
These two columns are the humidity measurements at 1:00 p.m. and 4:00 p.m.
4. Select April and click X.
5. Click OK.
The plot shown in Figure 4.2 appears. Initially, this platform overlays all specified Y columns. The legend below the plot shows individual markers and colors that identify each Y column.
Figure 4.2 Plot with ...
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