Ruby或Python中的财务图表/图表

时间:2009-07-06 21:31:21

标签: python ruby charts graph financial

使用Ruby或Python等高级语言创建财务开放 - 高 - 低 - 收盘(OHLC)图表的最佳选择是什么?虽然图形似乎有很多选择,但我没有看到任何宝石或鸡蛋这种图表。

http://en.wikipedia.org/wiki/Open-high-low-close_chart(但我不需要移动平均线或布林带)

JFreeChart可以用Java做到这一点,但我想让我的代码库尽可能小而简单。

谢谢!

8 个答案:

答案 0 :(得分:17)

您可以使用matplotlibmatplotlib.pyplot.bar的可选bottom参数。然后,您可以使用行plot来表示开盘价和收盘价:

例如:

#!/usr/bin/env python
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import lines

import random


deltas = [4, 6, 13, 18, 15, 14, 10, 13, 9, 6, 15, 9, 6, 1, 1, 2, 4, 4, 4, 4, 10, 11, 16, 17, 12, 10, 12, 15, 17, 16, 11, 10, 9, 9, 7, 10, 7, 16, 8, 12, 10, 14, 10, 15, 15, 16, 12, 8, 15, 16]
bases = [46, 49, 45, 45, 44, 49, 51, 52, 56, 58, 53, 57, 62, 63, 68, 66, 65, 66, 63, 63, 62, 61, 61, 57, 61, 64, 63, 58, 56, 56, 56, 60, 59, 54, 57, 54, 54, 50, 53, 51, 48, 43, 42, 38, 37, 39, 44, 49, 47, 43]


def rand_pt(bases, deltas):
    return [random.randint(base, base + delta) for base, delta in zip(bases, deltas)]

# randomly assign opening and closing prices 
openings = rand_pt(bases, deltas)
closings = rand_pt(bases, deltas)

# First we draw the bars which show the high and low prices
# bottom holds the low price while deltas holds the difference 
# between high and low.
width = 0
ax = plt.axes()
rects1 = ax.bar(np.arange(50), deltas, width, color='r', bottom=bases)

# Now draw the ticks indicating the opening and closing price
for opening, closing, bar in zip(openings, closings, rects1):
    x, w = bar.get_x(), 0.2

    args = {
    }

    ax.plot((x - w, x), (opening, opening), **args)
    ax.plot((x, x + w), (closing, closing), **args)


plt.show()

创建一个这样的情节:

enter image description here

显然,你想要在一个使用(open, close, min, max)元组绘制情节的函数中打包它(你可能不想随意分配你的开盘价和收盘价)。

答案 1 :(得分:8)

您可以在Python中使用Pylab(matplotlib.finance)。以下是一些示例:http://matplotlib.sourceforge.net/examples/pylab_examples/plotfile_demo.htmlBeginning Python Visualization中有一些关于这个问题的特别好的材料。

更新:我认为您可以使用matplotlib.finance.candlestick作为日本烛台效果。

答案 2 :(得分:4)

您是否考虑过使用R和quantmod套餐?它可能提供您所需要的。

答案 3 :(得分:4)

有关使用matplotlib的财务图(OHLC)的一些示例可以在这里找到:

  • finance demo

    #!/usr/bin/env python
    from pylab import *
    from matplotlib.dates import  DateFormatter, WeekdayLocator, HourLocator, \
         DayLocator, MONDAY
    from matplotlib.finance import quotes_historical_yahoo, candlestick,\
         plot_day_summary, candlestick2
    
    # (Year, month, day) tuples suffice as args for quotes_historical_yahoo
    date1 = ( 2004, 2, 1)
    date2 = ( 2004, 4, 12 )
    
    
    mondays = WeekdayLocator(MONDAY)        # major ticks on the mondays
    alldays    = DayLocator()              # minor ticks on the days
    weekFormatter = DateFormatter('%b %d')  # Eg, Jan 12
    dayFormatter = DateFormatter('%d')      # Eg, 12
    
    quotes = quotes_historical_yahoo('INTC', date1, date2)
    if len(quotes) == 0:
        raise SystemExit
    
    fig = figure()
    fig.subplots_adjust(bottom=0.2)
    ax = fig.add_subplot(111)
    ax.xaxis.set_major_locator(mondays)
    ax.xaxis.set_minor_locator(alldays)
    ax.xaxis.set_major_formatter(weekFormatter)
    #ax.xaxis.set_minor_formatter(dayFormatter)
    
    #plot_day_summary(ax, quotes, ticksize=3)
    candlestick(ax, quotes, width=0.6)
    
    ax.xaxis_date()
    ax.autoscale_view()
    setp( gca().get_xticklabels(), rotation=45, horizontalalignment='right')
    
    show()
    

enter image description here

答案 4 :(得分:1)

您可以自由使用JRuby而不是Ruby吗?那会让你使用JFreeChart,而你的代码仍然是Ruby

答案 5 :(得分:0)

请查看WHIFF的Open Flash Chart嵌入 http://aaron.oirt.rutgers.edu/myapp/docs/W1100_1600.openFlashCharts 蜡烛图的一个例子就在顶部。这将是特别的 适合嵌入网页。

答案 6 :(得分:0)

如果你喜欢这些例子的话,打开Flash Chart是不错的选择。我已经转移到JavaScript嵌入式图表的{/ 3}}之类的JavaScript / Canvas库,因为它更加可定制,我可以在没有太多黑客攻击的情况下得到理想的效果(Flot)。

答案 7 :(得分:0)

这是我几天前使用Matplotlib绘制的股票图表,我也发布了源代码,供您参考:StockChart_Matplotlib