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202 Output Reports Chapter 6
Altering Plot and Chart Appearances
Selecting a date interval from the date increment drop-down menu divides the JMP date (number of
seconds) into the appropriate units to give the plot scale you want for your data. The date axis must be
a column with a JMP date value and appear in the Axis Specification window in the date format found
in the Column Info window. However, you can use the Axis Specification window to format the date
any way you want it to be displayed in the plot.
Establishing the Minimum and Maximum Axis Values
For plots and charts that contain a numeric axis area, you can change the minimum (Min) and
maximum (Max) values you want the graph to display.
To change the minimum and maximum axis values while viewing a graph:
1 Double-click a numeric axis. Or, right-click and select Axis Settings. The axis specification window
appears.
2 Type in a value for the minimum (Min) and maximum (Max) values you want the graph to display.
You can restore the default minimum and maximum axis settings of a numeric axis by right-clicking a
numeric axis and selecting Revert Axis.
To set a default minimum and maximum axis value for a variable, which avoids making this change
every time you run an analysis, see “Changing Columns’ Default Axis Settings,” p. 152.
The example on the right in Figure 6.34 is an enlargement of the point cluster that shows between -200
and 500 in the plot to the left. The enlarged plot is obtained by reassigning the maximum and
minimum axis values and changing the number of minor tick marks. (See “Adding Minor Tick Marks,”
p. 207, for details.)
Figure 6.34 Rescale Axis to Enlarge a Plot Section
Changing the Axis Increments
While viewing a graph, you can change the axis increments:
1 Double-click a numeric axis. Or, right-click a numeric axis and select Axis Settings. The Axis
Specification window appears.
2 In the text box beside Increment, type the number of increments you want displayed.
3 If the format of the axis is Date or Time (as shown in the Format drop-down menu), there will be
another drop-down menu that appears beside Increment. (See Figure 6.35.) From that box, select
which format you want the increments to take.