Can Subplot support multiple y-axes?

📊 Plotly Python
3

Hi @Jason.Tam

When you define a figure with make_subplots() it is recommended to display fig.layout to inspect the axes name for each subplot:
(see also my answer, Can Plotly support 2 x-axis and 2 y-axis in one graph?, to your question related to secondary yaxis):

fig = make_subplots(
          rows=1, cols=4,
          specs=[[{'rowspan': 1, 'colspan': 2}, None, {'rowspan': 1, 'colspan': 2}, None]],
          horizontal_spacing =0.1)

print(fig.layout)

You’ll get:

Layout({
    'template': '...',
    'xaxis': {'anchor': 'y', 'domain': [0.0, 0.45]},
    'xaxis2': {'anchor': 'y2', 'domain': [0.55, 1.0]},
    'yaxis': {'anchor': 'x', 'domain': [0.0, 1.0]},
    'yaxis2': {'anchor': 'x2', 'domain': [0.0, 1.0]}
})

When you add traces you don’t have to set xaxis or yaxis for each subplot. It is sufficient to give the row and col for that subplot because the axes
have been already assigned by make_subplots().

Hence in your next lines of code remove yaxis=‘y4’, ‘y5’, because they DO NOT EXIST in your subplots!!!

From now on, please, paste here on forum formatted code, because copying your code and pasting it in my notebook requires a lot of wrong character replacement.
Just check it!!!

Here are details on how to include a code block on this forum:
https://help.github.com/en/github/writing-on-github/creating-and-highlighting-code-blocks