The JMP Graph Builder offers functionality for visualizing data using a secondary, or right, vertical axis. This feature allows for the simultaneous display of two variables with differing scales on a single graph. For example, one might plot temperature data on the primary y-axis (left) and humidity data on the secondary y-axis (right), facilitating a direct comparison of their trends over time.
Employing a secondary vertical axis provides several advantages. It avoids the need to create separate graphs for variables with vastly different ranges, saving space and simplifying comparisons. Furthermore, it enables the identification of potential correlations that might be obscured when the variables are plotted independently. Historically, this capability has been crucial in various scientific and engineering disciplines where visualizing relationships between disparate datasets is essential for analysis and informed decision-making.