Second Y-AXIS
Second Y-AXIS
Curves can be plotted in T/HIS using 2 different y-axis scales. When is selected using the tickbox in the Y2 Axis menu the Curve Manager changes
from
to
with an additional tick box for each curve that controls which curves are plotted against the second (right hand) y-axis.
If only one y-axis scale is used it is not possible to meaningfully plot curves with different units or very different values. A second scale allows more information to be displayed at once, as demonstrated below.
| To identify which axis a curve is being plotted against the line labels on the plot are automatically modified. | Second Y axis disabled |
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| Left hand Y axis |
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| Right hand y axis |
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All of the options that are available to control the label, scale and type of the y-axis are also available for the second y-axis except for the Grid option.
NOTE : When the DOUBLE AXIS option is used with GRID lines a grid is only plotted for the left hand y-axis.