[英]ystockquote data import into numpy array, IndexError: too many indices for array
在我从ystockquote导入股票报价后,出现了索引numpy数组的问题:
import numpy as np
import ystockquote as ysq
startdate = "2016-04-06"
enddate = "2016-04-07"
q = np.array(ysq.get_historical_prices("AAPL", startdate, enddate))
print(q)
{'2016-04-07': {'Close': '108.540001', 'Volume': '30881000', 'Adj Close': '108.540001', 'High': '110.419998', 'Low': '108.120003', 'Open': '109.949997'}, '2016-04-06': {'Close': '110.959999', 'Volume': '26047800', 'Adj Close': '110.959999', 'High': '110.980003', 'Low': '109.199997', 'Open': '110.230003'}}
q[0,0]
Traceback (most recent call last):
File "<ipython-input-105-ad764cdee54e>", line 1, in <module>
q[0,0]
IndexError: too many indices for array
q[0,:]
Traceback (most recent call last):
File "<ipython-input-106-069fcfa0a0f6>", line 1, in <module>
q[0,:]
IndexError: too many indices for array
q[:,0]
Traceback (most recent call last):
File "<ipython-input-107-782637b90296>", line 1, in <module>
q[:,0]
IndexError: too many indices for array
q.shape
Out[108]: ()
数组似乎没有尺寸。 有人可以解释发生了什么吗?
您基本上是在尝试将dict放入没有实际意义的数组中,也许项目将更接近您想要的内容:
d = {'2016-04-07': {'Close': '108.540001', 'Volume': '30881000', 'Adj Close': '108.540001', 'High': '110.419998', 'Low': '108.120003', 'Open': '109.949997'}, '2016-04-06': {'Close': '110.959999', 'Volume': '26047800', 'Adj Close': '110.959999', 'High': '110.980003', 'Low': '109.199997', 'Open': '110.230003'}}
q = np.array(list(d.items()))
print(q)
print q[0]
print(q.size)
这给你:
[['2016-04-07'
{'High': '110.419998', 'Adj Close': '108.540001', 'Volume': '30881000', 'Low': '108.120003', 'Close': '108.540001', 'Open': '109.949997'}]
['2016-04-06'
{'High': '110.980003', 'Adj Close': '110.959999', 'Volume': '26047800', 'Low': '109.199997', 'Close': '110.959999', 'Open': '110.230003'}]]
['2016-04-07'
{'High': '110.419998', 'Adj Close': '108.540001', 'Volume': '30881000', 'Low': '108.120003', 'Close': '108.540001', 'Open': '109.949997'}]
4
但是我不确定这是否比仅使用dict本身有用。
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