#!/usr/bin/env python
# coding: utf-8

# In[1]:


import numpy as np
from lets_plot import *
LetsPlot.setup_html()


# In[2]:


n = 100
np.random.seed(42)
x = np.random.normal(size=n)
group = np.random.choice(['a', 'b'], size=n)
p = ggplot({'x': x, 'group': group}, aes(x='x')) + geom_histogram() 
p


# In[3]:


p + theme_bw() + ggtitle("theme_bw()")


# In[4]:


p + facet_wrap(facets='group', ncol=2)+ theme_bw()