Scale

This activates a set of operations for scaling and shifting the data
inside the plotting window, and a scaling control panel appears to the
left of the plotting window.

The first set of controls applies to rescaling operations, and the
second set to operations that shift the center of the data.

It is also possible to scale and shift the data using mouse operations
inside the plotting window.  XGobi signals these changes in two ways:
The cursor changes inside the plotting window and a bit of text appears
above the window to briefly describe the mouse behavior.  You can shift
the plot by dragging left and rescale it by dragging middle.  If that
sentence is too terse for you, read the following paragraph:

 Place the cursor inside the plotting window.  Now hold the left button
 down while moving the mouse, and notice that the plot moves around
 inside the plotting region without changing shape.  Now try doing the
 same with the middle button, and notice that the plot is continuously
 being rescaled.

This button can be activated from the keyboard by typing s or S.
