mpl_finance模块已经从matlibplot里独立出来,实现了蜡烛线绘制功能,其包含的函数有:
1、 candlestick2_ochl(ax,opens,closes,highs,lows,width=4,colorup='k',colordown='r',alpha=0.75)
2、 candlestick2_ohlc(ax,opens,closes,highs,lows,width=4,colorup='k',colordown='r',alpha=0.75)
3、 candlestick_ochl(ax,quotes,width=0.2,colorup='k',colordown='r',alpha=1.0)
4、 candlestick_ohlc(ax,quotes,width=0.2,colorup='k',colordown='r',alpha=1.0)
5、 plot_day_summary2_ochl(ax,opens,closes,highs,lows,ticksize=4,colorup='k',colordown='r')
6、 plot_day_summary2_ohlc(ax,opens,highs,lows,closes,ticksize=4,colorup='k',colordown='r')
7、 plot_day_summary_oclh(ax,quotes,ticksize=3,colorup='k',colordown='r')
8、 plot_day_summary_ohlc(ax,quotes,ticksize=3,colorup='k',colordown='r')
9、 volume_overlay(ax,opens,closes,volummes,colorup='k',colordown='r',width=4,alpha=1.0)
10、 volume_overlay2(ax,closes,volumes,colorup='k',colordown='r',width=4,alpha=1.0)
11、 volume_overlay3(ax,quotes,colorup='k',colordown='r',width=4,alpha=1.0)
注意点:
mpl_finance模块使用时间需要是浮点类型数据,需要使用matplotlib中dates模块的date2num函数进行转换。
转换方式如下:
timeRecord = dts.date2num(datetime.datetime(yearTime,mothTime,dayTime,hourTime,minitueTime,secTime,msSecTime))
相关代码如下:
# 导入相关库
matplotlib.dates mdates matplotlib.pyplot plt pandas pd matplotlib.dates MONDAY, DateFormatter, DayLocator, WeekdayLocator tushare ts mpl_finance candlestick_ohlc mondays = WeekdayLocator(MONDAY) alldays = DayLocator() weekFormatter = DateFormatter() dayFormatter = DateFormatter() quotes = ts.get_k_data(, =, =, =, =) (quotes.index) quotes.index = pd.to_datetime(quotes[]) (quotes.index) fig, ax = plt.subplots() fig.subplots_adjust(=) ax.xaxis.set_minor_locator(alldays) candlestick_ohlc(ax, (mdates.date2num(quotes.index.to_pydatetime()),quotes[], quotes[],quotes[], quotes[]),=,=, =) ax.xaxis_date() ax.autoscale_view() plt.setp(plt.gca().get_xticklabels(), =, =) plt.show()
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