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Clarify Doc for Secondary axis, ad-hoc example #19249

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Jan 8, 2021
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Clarify Doc for Secondary axis, ad-hoc example #19249

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Clarify Doc for Secondary axis, ad-hoc example
dihm Jan 4, 2021
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dihm Jan 6, 2021
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dihm Jan 7, 2021
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13 changes: 12 additions & 1 deletion examples/subplots_axes_and_figures/secondary_axis.py
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Expand Up @@ -42,7 +42,7 @@ def rad2deg(x):
# Here is the case of converting from wavenumber to wavelength in a
# log-log scale.
#
# .. note ::
# .. note::
#
# In this case, the xscale of the parent is logarithmic, so the child is
# made logarithmic as well.
Expand Down Expand Up @@ -79,6 +79,17 @@ def one_over(x):
# the data, and is derived empirically. In that case we can set the
# forward and inverse transforms functions to be linear interpolations from the
# one data set to the other.
#
# .. note::
#
# In order to properly handle the data margins, the mapping functions
# (``forward`` and ``inverse`` in this example) need to be defined beyond the
# nominal plot limits.
#
# In the specific case of the numpy linear interpolation, `numpy.interp`,
# this condition can be arbitrarily enforced by providing optional kwargs
# *left*, *right* such that values outside the data range are mapped
# well outside the plot limits.

fig, ax = plt.subplots(constrained_layout=True)
xdata = np.arange(1, 11, 0.4)
Expand Down