[Py2.7] Create Chart from CSV file(odd loading csv file).

/*********************************************************************************************************
-- Title : [Py2.7] Create Chart from CSV file(odd loading csv file).
-- Reference : pythonprogramming.net
-- Key word : matplotlib pyplot csv  numpy loadtxt reader
*********************************************************************************************************/

-- Figure

-- Script

# -*- coding: utf-8 -*-
 
import matplotlib.pyplot as plt
import csv
 
# ********************************************
# -- Create Chart-1 from CSV file.
# ********************************************
x = []
y = []
 
with open('c:\\samples\\pythonprogramming\\example.txt','r') as csvfile:
    plots = csv.reader(csvfile, delimiter=',')
    for row in plots:
        x.append(int(row[0]))
        y.append(int(row[1]))
 
plt.plot(x,y, label='Loaded from file!')
plt.xlabel('xlabel')
plt.ylabel('ylabel')
plt.title('Title: Chart from CSV file.')
plt.legend()
plt.show()
 
 
# ********************************************
# -- Create Chart-2 from CSV file.
# ********************************************
import numpy as np
 
x, y = np.loadtxt('c:\\samples\\pythonprogramming\\example.txt', delimiter=',', unpack=True)
 
plt.plot(x,y, label='Loaded from file!')
plt.xlabel('xlabel')
plt.ylabel('ylabel')
plt.title('Title: Chart from CSV file.')
plt.legend()
plt.show()
 

-- Files

example.txt