Create multiple axis on the fly using a for loop

📊 Plotly Python
1

Hi,

I have multiple bar charts that I want to display in a completely different chart area -similar to a bullet chart-. In order to generate the different chart I need to use multiple xaxis and yaxis.

I am generating my bars using a for loop. Is there a way to generate the different xaxis/ yaxis within a loop and add them to the layout? I have seen that the name of the axis changes i.e. 'xaxis', 'xaxis1', 'xaxis2' etc. so I thought that there might be a way to replicate using a for loop.

Any clue how to tackle the above?

2

Hello,

If you’re doing it in Plotly, you can use subplots or dropdowns.
If you wish to specifically have one fixed axis (eg. x-axis is constant) and multiple axes on the axis (eg. 2 y-axes), you can use:

#assuming Y and Y2 are the two y values for data1 and data2 
fig={'data': [data1,data2],'layout' : go.Layout(xaxis=dict(range=[min(X),max(X)]),
                                                          yaxis=dict(range=[min(Y2),max(Y2*4)], title='Volume', side='right'),
                                                          yaxis2=dict(range=[min(Y),max(Y)], side='left', overlaying='y',title='sentiment'),
                                                          
                                                          title='Live sentiment ..'}

Hope this helped!

3

Hi @mr.t,

Once you know how many subplots you want, another approach is to construct the figure using the tools.make_subplots function. See https://plot.ly/python/subplots/#simple-subplot for some examples.

-Jon

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