subplot with plotly with multiple traces

Question

i am trying to create subplots for the following plots:

the code i used for the the plots are :

radius_mean1 = df[df['diagnosis']==1]['radius_mean']
radius_mean0 = df[df['diagnosis']==0]['radius_mean']

trace_rm1 = go.Histogram(x = radius_mean1, opacity = 0.75, name = 'malignant')
trace_rm2 = go.Histogram(x = radius_mean0, opacity = 0.75, name = 'benign')

data2 = [trace_rm1,trace_rm2]
layout2 = go.Layout(barmode = 'overlay', title = 'radius mean')
fig2 = go.Figure(data=data2, layout=layout2)

py.iplot(fig2)

and similar for the other plot

now i use the following code i found to create subplots:

fig.append_trace(fig1['data'][1], 1, 1)
fig.append_trace(fig2['data'][0], 2, 1)
py.iplot(fig)

and i get this :

how do i add both benign and malignant results to the subplots ? i cant seem to edit the [0] or [ 1] to show both ie have the first 2 plots exactly into my subplot showing both malignant and benign and not just one or the other.

Nimantha · Accepted Answer · 2021-04-12 18:29:03Z

22

The data here is not complete, so I using some demo data to present.

import numpy as np
import plotly.graph_objs as go
import plotly

a = np.random.normal(0,1,100)
b = np.random.normal(-2,5,100)

c = np.random.normal(0,1,100)
d = np.random.normal(-2,5,100)

fig = plotly.tools.make_subplots(rows=2,cols=1)

trace_rm1 = go.Histogram(x = a, opacity = 0.75, name = 'malignant')
trace_rm2 = go.Histogram(x = b, opacity = 0.75, name = 'benign')
fig.append_trace(go.Histogram(x = a, opacity = 0.75, name = 'benign'),1,1)
fig.append_trace(go.Histogram(x = b, opacity = 0.75, name = 'malignant'),1,1)
fig.append_trace(go.Histogram(x = c, opacity = 0.75, name = 'benign'),2,1)
fig.append_trace(go.Histogram(x = d, opacity = 0.75, name = 'malignant'),2,1)
fig.layout.update(go.Layout(barmode = 'overlay',))

plotly.offline.plot(fig)

edited Apr 12, 2021 at 18:29

Nimantha

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answered Sep 19, 2018 at 3:24

tianhua liao

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4 Comments

A.P. Over a year ago

Would it be possible to give each of the two plots a title?

tianhua liao Over a year ago

@A.P. Of course, you could just fill the param of plotly.tools.make_subplots, there is a param called subplot_titles. It actually adds two annotations automatically for you.

NeStack Over a year ago

For the subplot in row=1, column=1: can you shorten the commands for plotting the 2 histograms, so that they fit into 1 line? Or can you have one command for plotting multiple histograms at once?

tianhua liao Over a year ago

@NeStack but first you need to have a combined data with indicator of different groups? or something else. you could see the plotly express for help I think. plotly.com/python/plotly-express

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