Add a second y-axis to this Axes
.
For example if we want to have a second scale for the data plotted on the yaxis.
The position to put the secondary axis. Strings can be 'top' or 'bottom' for orientation='x' and 'right' or 'left' for orientation='y'. A float indicates the relative position on the parent Axes to put the new Axes, 0.0 being the bottom (or left) and 1.0 being the top (or right).
If a 2-tuple of functions, the user specifies the transform function and its inverse. i.e. functions=(lambda x: 2 / x, lambda x: 2 / x)
would be an reciprocal transform with a factor of 2. Both functions must accept numpy arrays as input.
The user can also directly supply a subclass of transforms.Transform
so long as it has an inverse.
See Secondary Axis for examples of making these conversions.
Transform
, optional
If specified, location will be placed relative to this transform (in the direction of the axis) rather than the parent's axis. i.e. a secondary x-axis will use the provided y transform and the x transform of the parent.
Added in version 3.9.
Axes
properties.
Other miscellaneous Axes parameters.
Warning
This method is experimental as of 3.1, and the API may change.
Examples
Add a secondary Axes that converts from radians to degrees
(Source code
, 2x.png
, png
)
To add a secondary axis relative to your data, you can pass a transform to the new axis.
(Source code
, 2x.png
, png
)
matplotlib.axes.Axes.secondary_yaxis
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