CODE EXAMPLE FOR PYTHON

seaborn log heatmap

import numpy as np
import seaborn as sns; sns.set_theme(style='white')
import matplotlib.pyplot as plt
from matplotlib.colors import LogNorm, Normalize
from matplotlib.ticker import MaxNLocator

flights = sns.load_dataset("flights")
flights = flights.pivot("month", "year", "passengers")


f3, ax5 = plt.subplots(1,1)
sns.heatmap(flights, square=True, norm=LogNorm())