python plot heatmap code example

Example 1: print the heat map python

import numpy as np
import seaborn as sns
import matplotlib.pylab as plt

uniform_data = np.random.rand(10, 12)
ax = sns.heatmap(uniform_data, linewidth=0.5)
plt.show()

Example 2: pandas plot heatmap

import matplotlib.pyplot as plt
import seaborn as sns

# optional: resize images from now on
plt.rcParams["figure.figsize"] = (16, 12)

# numeric_only_columns is a list of columns of the DataFrame
# containing numerical data only
# annot = True to visualize the correlation factor

sns.heatmap(df[numeric_only_columns].corr(), annot = False)
plt.show()

Example 3: python plot heatmap by city

#plotting the map of the shape file preview of the maps without data in itmap_df.plot()