{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "\n# Inspecting node\n"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
        "Information about a node is displayed in its tooltip. There are three items: ``id``, ``distance``,\nand ``size``.\n\nThe ``id`` is the :term:`node ID`. In the following code, the ``id`` of a leaf node corresponding\nto ``X[i]`` is ``i`` and that of a branch node corresponding to ``Z[i]`` is ``i+n``.\n\nThe ``distance`` is the distance between child nodes. It is zero for leaf nodes. In the following\ncode, the ``distance`` of a branch node corresponding to ``Z[i]`` is its y-coordinate, or\n``Z[i, 2]``.\n\nThe ``size`` is the number of descendant leaf nodes. It is one for leaf nodes. In the following\ncode, the ``size`` of a branch node corresponding to ``Z[i]`` is ``Z[i, 3]``.\n\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "import plotly.graph_objects as go\nimport plotly.io as pio\nimport scipy\n\nfrom pdendro import attach_dendrogram\n\nX = [[0.0], [1.0], [3.0], [6.0]]\n\nZ = scipy.cluster.hierarchy.linkage(X)\n\nfig = go.Figure()\nattach_dendrogram(fig, Z)\npio.show(fig)"
      ]
    }
  ],
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      "display_name": "Python 3",
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      "file_extension": ".py",
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      "name": "python",
      "nbconvert_exporter": "python",
      "pygments_lexer": "ipython3",
      "version": "3.14.4"
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