matplotlib.artist.Artist.convert_yunits
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Artist.convert_yunits(self, y)[source]
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Convert y using the unit type of the yaxis. If the artist is not in contained in an Axes or if the yaxis does not have units, y itself is returned. 
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Licensed under the Matplotlib License Agreement.
    https://matplotlib.org/3.3.3/api/_as_gen/matplotlib.artist.Artist.convert_yunits.html