import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt
%matplotlib inline
df = sns.load_dataset('titanic')
# Usual case
sns.barplot(x='class',y='age',hue='survived',data=df)
# No error bars (ci=None)
sns.barplot(x='class',y='age',hue='survived',data=df,ci=None)
plt.show ()