How to make a histogram from a list of strings in Python?

Question

I have a list of strings:

a = [\'a\', \'a\', \'a\', \'a\', \'b\', \'b\', \'c\', \'c\', \'c\', \'d\', \'e\', \'e\', \'e\', \'e\', \'e\']

I w

Answer 1

Simple and effective way to make character histrogram in python

import numpy as np

import matplotlib.pyplot as plt

from collections import Counter



a = []
count =0
d = dict()
filename = raw_input("Enter file name: ")
with open(filename,'r') as f:
    for word in f:
        for letter  in word:
            if letter not in d:
                d[letter] = 1
            else:
                d[letter] +=1
num = Counter(d)
x = list(num.values())
y = list(num.keys())

x_coordinates = np.arange(len(num.keys()))
plt.bar(x_coordinates,x)
plt.xticks(x_coordinates,y)
plt.show()
print x,y