Showing all node markers

By default, node markers are visible only for root nodes of subtrees. Visibility is controlled by marker sizes. All node markers can be shown by resetting marker sizes to the default.

import plotly.graph_objects as go
import plotly.io as pio
import scipy

from pdendro import make_components

X = [[0.0], [1.0], [3.0], [6.0]]
Z = scipy.cluster.hierarchy.linkage(X)

T = scipy.cluster.hierarchy.fcluster(Z, 1.5, criterion="distance")
L, _ = scipy.cluster.hierarchy.leaders(Z, T)

node_trace, link_traces, x_axis, y_axis = make_components(Z, subtrees=L)
node_trace.update(marker={"size": None})

fig = go.Figure()
fig.add_traces(list(link_traces.values()))
fig.add_trace(node_trace)
fig.update_xaxes(x_axis)
fig.update_yaxes(y_axis)
pio.show(fig)

Alternatively, if the attach_dendrogram() function is used, marker sizes must be modified later.

from pdendro import attach_dendrogram

fig = go.Figure()
attach_dendrogram(fig, Z, subtrees=L)

node_trace = fig.data[-1]
node_trace.update(marker={"size": None})

pio.show(fig)