image_output_1.png
import matplotlib.pyplot as plt

import numpy as np

import pandas as pd

types = {'Semana': np.uint8, 'Cliente_ID': np.uint32, 'Producto_ID': np.uint16, 'Demanda_uni_equil': np.uint32}
df = pd.read_csv('../input/train.csv', usecols=types.keys(), dtype=types)

df.Demanda_uni_equil.hist(bins=100)
plt.xlabel('Demand per week')
plt.ylabel('Number of clients')