我是Python的新手,我很难在matplotlib文档中运行这个示例:
http://matplotlib.org/examples/pylab_examples/finance_demo.html
我基本上将代码1:1复制到我的Python文件中,当我尝试运行它时,我得到如下错误:
File "plot.py", line 5, in <module>
from matplotlib.finance import quotes_historical_yahoo_ohlc, candlestick_ohlc
ImportError: cannot import name quotes_historical_yahoo_ohlc
我在Mac和Linux机器上得到相同的结果,所以我假设它与安装有关或者缺少依赖。在Linux上,我已经通过apt-get install
安装了Mac,我使用了pip
。
非常感谢任何帮助或疑难解答信息。
答案 0 :(得分:3)
所以在光标提示符下我输入了:
import matplotlib
dir(matplotlib.finance)
...我看到了类似的项目,但最后没有“_ohlc”。
['Affine2D', 'Line2D', 'LineCollection', 'PolyCollection', 'Rectangle',
'TICKLEFT', 'TICKRIGHT', '__builtins__', '__doc__', '__file__',
'__name__', '__package__', 'cachedir', 'candlestick', 'candlestick2',
'colorConverter', 'contextlib', 'date2num', 'datetime', 'division',
'fetch_historical_yahoo', 'get_cachedir', 'index_bar', 'iterable',
'md5', 'mkdirs', 'np', 'os', 'parse_yahoo_historical', 'plot_day_summary',
'plot_day_summary2', 'print_function', 'quotes_historical_yahoo',
'stock_dt', 'sys', 'urlopen', 'verbose', 'volume_overlay',
'volume_overlay2', 'volume_overlay3', 'warnings']
所以我只是删除了最后五个字母_ohlc
到处看看会发生什么,现在它对我有用。我不确定这是否真的100%正确。 2013年@tcaswell有一些activity ......
#!/usr/bin/env python
import matplotlib.pyplot as plt
from matplotlib.dates import DateFormatter, WeekdayLocator,\
DayLocator, MONDAY
from matplotlib.finance import quotes_historical_yahoo, candlestick # _ohlc deleted
# (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') # e.g., Jan 12
dayFormatter = DateFormatter('%d') # e.g., 12
quotes = quotes_historical_yahoo('INTC', date1, date2) # _ohlc deleted
if len(quotes) == 0:
raise SystemExit
fig, ax = plt.subplots()
fig.subplots_adjust(bottom=0.2)
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) # _ohlc deleted
ax.xaxis_date()
ax.autoscale_view()
plt.setp(plt.gca().get_xticklabels(), rotation=45, horizontalalignment='right')
plt.show()