4.2.1 Barplot

A barplot is one of the most common types of plot. It shows the relationship between a numerical variable and a categorical variable.

1. Simple Bar

x = np.array(list("ABCDEFGHIJ"))  # categorical variable 
y = np.arange(1, 11)
sns.barplot(x=x, y=y, palette="viridis")  

Simple Barplot

2. Vertical barplot

tips = sns.load_dataset("tips") # load embedded dataset "tips"

sns.barplot(x="day", y="total_bill", data=tips, color="royalblue")

Vertical Barplot

3. Horizontal Barplot

# make a horizontal barplot
sns.barplot(x="total_bill", y="day", data=tips, color="royalblue")

# add a vertical line
plt.axvline(x = 19.8,color='r',linewidth = 2,linestyle = '--')

# add annotation
plt.text(19.8+0.2, 0.5, " Avg Bill: $20", size='small', color='r', weight='light')

Horizontal Barplot

4. Grouped Barplot

sns.barplot(x="day", y="total_bill", hue="sex", data=tips, palette = "Set1")
plt.legend(loc=2)  # set legend position 

Stacked Barplot

5. Facet Barplot

plt.figure(figsize = (12,6))
sns.catplot(x="sex", y="total_bill",
                hue="time", col="day",
                data=tips, kind="bar",
                height=5, aspect=.7,palette = "Set1");

Facet Barplot