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  • Python可视化Matplotlib-K线图

    引入类库

    import matplotlib as mpl
    import tushare as ts
    import matplotlib.pyplot as plt
    import matplotlib.finance as mpf
    from matplotlib import rc
    from matplotlib.pylab import date2num
    from datetime import datetime, timedelta

    设置取k线的时间

    today = datetime.now().strftime('%Y-%m-%d')
    before = (datetime.now() - timedelta(days = 120)).strftime('%Y-%m-%d') #120自然日,大概80个交易日

    获取行情数据

    #获取行情数据,格式: pandas.core.frame.DataFrame
    code = '000063'
    tsla_df = ts.get_k_data(code, start = before, end = today)
    # print(tsla_df)
    '''
    蜡烛图的日期,不支持普通的YYYY-MM-DD格式
    要使用matplotlib.finance.date2num进行转换为特有的数字值
    '''
    qutotes = []
    for _, (d, o, c, h, l) in enumerate(
            zip(tsla_df.date, tsla_df.open, tsla_df.close, tsla_df.high, tsla_df.low)):
        d = mpf.date2num(datetime.strptime(d,'%Y-%m-%d'))
        # 日期,开盘,收盘,最高,最低组成tuple对象val
        val = (d, o, h, l, c)
        # 加val加入qutotes
        qutotes.append(val)
    fig, ax = plt.subplots(figsize=(15,5))      #设置图片大小
    fig.subplots_adjust(bottom=0.5)             #调整画框的位置,用来消除白边
    
    ax.xaxis_date()                             # X轴的刻度为日期
    plt.xticks(rotation=45)                     # 设置日期刻度旋转的角度
    plt.title(code)                         # 设置图片标题
    plt.xlabel('Date')                          # 设置X轴标题
    plt.ylabel('Price')                         # 设置Y轴标题
    plt.grid(True)                              # 显示网格
    
    mpf.candlestick_ohlc(ax, qutotes, width=0.6, colorup='g', colordown='r', alpha=1.0)
    plt.show()



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  • 原文地址:https://www.cnblogs.com/bitquant/p/python-matplotlib-kline.html
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