I wanted to add a number of points (in my case there's 111 points in the data file, so it would be N = 111) under the legend.
sns.histplot(x, stat = 'density',
binwidth = 50,
kde = True,
color = 'red', alpha = .3,
kde_kws = {'cut': 2, 'bw_adjust': 0.5})
plt.legend(labels=["Sample_1"],
fontsize = 16)
plt.xlabel('Age', fontsize=18)
plt.ylabel('Density', fontsize=18)
I'm sure there are different approaches to this than mine, but one is to add it to the legend label. The second is to simply add the annotation anywhere. Since no data was provided, I used data from seaborn reference page .
import seaborn as sns
import matplotlib.pyplot as plt
import numpy as np
penguins = sns.load_dataset("penguins")
hist, bins = np.histogram(penguins['bill_length_mm'].fillna(0))
print(hist,bins)
fig, ax = plt.subplots()
ax =sns.histplot(data=penguins, x='bill_length_mm', stat='density',
binwidth = 10,
kde = True,
color = 'red', alpha = .3,
kde_kws = {'cut': 2, 'bw_adjust': 0.5})
plt.legend(labels=["Sample_1\n N={}".format(max(hist))], fontsize = 16)
plt.text(0.1, 0.9, 'N={}'.format(max(hist)), transform=ax.transAxes)
plt.xlabel('Age', fontsize=18)
plt.ylabel('Density', fontsize=18)
plt.show()
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