With this method you can create a vertical axis to use with new CFVariable instances. Note that you should set the "positive" attribute after creating the axis to indicate if values are increasing going upwards (positive = "up") or downwards (positive = "down").
makeVerticalAxis(name, values, bounds, attributes = NULL)A CFAxisVertical instance.
Name of the axis.
The coordinate values.
The bounds of the coordinate values, or NULL if not
available.
data.frame with the attributes of the axis to create.
Attributes "actual_range" and "axis" will be set or updated.