[Py2.7] Spines and horizontal lines(중심선과 수평선) w/ Matplotlib.pyplot

/*********************************************************************************************************
-- Title : [Py2.7] Spines and horizontal lines(중심선과 수평선) w/ Matplotlib.pyplot
-- Reference : pythonprogramming.net
-- Key word : matplotlib pyplot spines set_linewidth tick_params 중심선 수평선
*********************************************************************************************************/

-- Figure

# -*- coding: utf-8 -*-
 
import matplotlib.pyplot as plt
import numpy as np
import urllib
import matplotlib.dates as mdates
 
def bytespdate2num(fmt, encoding='utf-8'):
    strconverter = mdates.strpdate2num(fmt)
    def bytesconverter(b):
        s = b.decode(encoding)
        return strconverter(s)
    return bytesconverter
 
def graph_data(stock):
 
    fig = plt.figure()
    ax1 = plt.subplot2grid((1,1), (0,0))
 
    stock_price_url = 'http://chartapi.finance.yahoo.com/instrument/1.0/'+stock+'/chartdata;type=quote;range=10y/csv'
 
    source_code = urllib.urlopen(stock_price_url).read()
    #print source_code
 
    stock_data = []
    split_source = source_code.split('\n')
 
    for line in split_source:
        split_line = line.split(',')
        if len(split_line) == 6:
            if 'values' not in line and 'labels' not in line:
                stock_data.append(line)
 
    # -- 항목별로 분리 저장(to 리스트)
    date, closep, highp, lowp, openp, volume = np.loadtxt(stock_data,
                                                          delimiter=',',
                                                          unpack=True,
                                                          converters={0: bytespdate2num('%Y%m%d')})
 
    ax1.plot_date(date, closep, '-', label="Price")
    ax1.plot([],[], linewidth=5, label='loss', color='r', alpha=0.5)
    ax1.plot([],[], linewidth=5, label='gain', color='g', alpha=0.5)
 
    ax1.axhline(closep[0], color='k', linewidth=5)         # <-- 중앙 기준값 라인 변경
 
    ax1.fill_between(date, closep, closep[0], where=(closep > closep[0]), facecolor='g', alpha=0.3)
    ax1.fill_between(date, closep, closep[0], where=(closep < closep[0]), facecolor='r', alpha=0.3)
 
    for label in ax1.xaxis.get_ticklabels():
        label.set_rotation(45)
    ax1.grid(True)
    ax1.set_yticks([0, 25, 50, 75])
 
    ax1.spines['left'].set_color('r')                      # <-- 그래프 모서리 색상 변경
    ax1.spines['left'].set_linewidth(5)
 
    ax1.spines['right'].set_visible(False)
    ax1.spines['top'].set_visible(False)
 
    ax1.tick_params(axis='x', colors='#f06215')            # <-- 축 범례 값 색 변경
 
    plt.subplots_adjust(left=0.09, bottom=0.20, right=0.94, top=0.90, wspace=0.2, hspace=0)
 
    plt.xlabel('xlabel:Date')
    plt.ylabel('ylabel:Price')
    plt.title('Title: STOCK')
    plt.legend()
    plt.show()
 
graph_data('twtr')