Plot histogram data

plotHistogram

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

"""
	Plot histogram
	 
	version 1.0
	autor José Gómez Castaño
	email jgcasta@gmail.com

"""

import numpy as np
import matplotlib.mlab as mlab
import matplotlib.pyplot as plt
import csv


x,y = [],[]
num = 0
csv_reader = csv.reader(open('radiancia_poblacion_2006.csv'))
for line in csv_reader:
    x.append(float(line[1]))
    num = num + 1

plt.hist(x, bins = num, normed=1)

plt.xlabel('Values')
plt.ylabel('Probability')
plt.title(r'Histograma')

plt.show()