"""Heatmap plot figures."""
import plotly.graph_objs as go
import pandas as pd
[docs]def fig_heatmap(df_matrix: pd.DataFrame, title: str = "") -> go.Figure:
"""Generate heatmap figure from NxN matrix.
Args:
df_matrix (pandas.DataFrame): Matrix as DataFrame. Index values and column values must be equal.
title (str): Title of plot. Defaults to "".
Returns:
plotly.graph_objs.Figure
"""
trace = go.Heatmap(
z=df_matrix,
x=df_matrix.columns,
y=df_matrix.index,
hovertemplate="%{y} ---> %{x}<extra>%{z}</extra>",
colorscale="Greens",
)
data = [trace]
layout = {"title": {"text": title}, "xaxis": {"title": "Receiver"}, "yaxis": {"title": "Sender"}}
fig = go.Figure(data=data, layout=layout)
return fig
