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import pandas as pd
import holoviews as hv

hv.extension('matplotlib')
hv.output(fig='svg')

Declare data



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edges = pd.read_csv('../../../assets/energy.csv')
edges.head(5)

Plot



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hv.Sankey(edges, label='Energy Diagram').opts(
    label_position='left', edge_color='target', node_color='index', cmap='tab20')