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pythonplotlyhistogramsubplot

plotly histogram subplot size

I want to create 20 subplots histogram charts with ploty but the size of the overall plot is not optimal:

from plotly.subplots import make_subplots
import plotly.graph_objs as go

data = [some data]
fig = make_subplots(rows=len(data), cols=1, shared_xaxes=True,
                    vertical_spacing=0.02, row_heights=[50] * 20)
p = 1                   
for i in data:
    fig.append_trace(go.Histogram(x=i), row=p, col=1)
    p += 1
    
fig.show()

The plot looks like this:

enter image description here

I would like to have some more space between the plots and increase the height of the subplots. I tried to play with the vertical_spacing and row_heights parameters but the plots are not updating.

How can I increase the height of the subplots and the space between them?

Solution

  • Agree with @r-beginners, you'll have to play with the size options to get the plots to look right. There are two ways I've used before, setting the size in fig.update_layout() or when exporting the image in fig.write_image().

    updating image:

    fig.update_layout(
    autosize=False,
    width=1920,
    height=2000)

    exporting image:

    fig.write_image('histograms.pdf',
    width=1920, 
    height=2000)