.AXIS SYNC Y AXIS

This subroutine sets a linear formula to synchronize the secondary y-axis scale to the primary y-axis scale.

Usage:

      PASS         <slope>                    FIELD            SHARE? N
      PASS         <intercept>                FIELD            SHARE? N
      GOSUB    0CD .AXIS SYNC Y AXIS
      *        Check for error
      IF       0CD .AXIS SYNC Y AXIS          NE

Description:

This subroutine sets a linear formula to synchronize the secondary y-axis scale to the primary y-axis scale.

This is usually used if the two y-axes represent the same measurement using different units. Examples including temperature in Celsius and in Fahrenheit, and length in meters and feet.

Both parameters are optional, and if not received, <slope> defaults to 1 and <intercept> default to zero. To "un-synchronize" the 2 axes, pass a blank for <slope>. If neither parameter is received, this will simply duplicate the scale on both the primary and secondary axes.

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-- JeanNeron - 2011-12-12