Python 如何通过雅虎导入熊猫的多种股票价格?
因此,我尝试使用pandas和panadas datareader获取多个股票价格。如果我只尝试导入一个ticker,它将正常运行,但如果我使用多个ticker,则会出现错误。代码是:Python 如何通过雅虎导入熊猫的多种股票价格?,python,pandas,yahoo-finance,pandas-datareader,Python,Pandas,Yahoo Finance,Pandas Datareader,因此,我尝试使用pandas和panadas datareader获取多个股票价格。如果我只尝试导入一个ticker,它将正常运行,但如果我使用多个ticker,则会出现错误。代码是: import pandas as pd import pandas_datareader as web import datetime as dt stocks = ['BA', 'AMD'] start = dt.datetime(2018, 1, 1) end = dt.datetime(2020, 1, 1
import pandas as pd
import pandas_datareader as web
import datetime as dt
stocks = ['BA', 'AMD']
start = dt.datetime(2018, 1, 1)
end = dt.datetime(2020, 1, 1)
d = web.DataReader(stocks, 'yahoo', start, end)
虽然我得到了错误:
ValueError: Wrong number of items passed 2, placement implies 1
那么,我如何才能绕过它,只允许通过1只股票。
到目前为止,我已经尝试使用quandl和google,这两种方法都不起作用。我也尝试过pdr.get_data_yahoo,但得到了相同的结果。我也尝试过yf.download()
,但仍然遇到同样的问题。有没有人有什么办法来解决这个问题?多谢各位
编辑:完整代码:
import pandas as pd
import pandas_datareader as web
import datetime as dt
import yfinance as yf
import numpy as np
stocks = ['BA', 'AMD', 'AAPL']
start = dt.datetime(2018, 1, 1)
end = dt.datetime(2020, 1, 1)
d = web.DataReader(stocks, 'yahoo', start, end)
d['sma50'] = np.round(d['Close'].rolling(window=2).mean(), decimals=2)
d['sma200'] = np.round(d['Close'].rolling(window=14).mean(), decimals=2)
d['200-50'] = d['sma200'] - d['sma50']
_buy = -2
d['Crossover_Long'] = np.where(d['200-50'] < _buy, 1, 0)
d['Crossover_Long_Change']=d.Crossover_Long.diff()
d['buy'] = np.where(d['Crossover_Long_Change'] == 1, 'buy', 'n/a')
d['sell'] = np.where(d['Crossover_Long_Change'] == -1, 'sell', 'n/a')
pd.set_option('display.max_rows', 5093)
d.drop(['High', 'Low', 'Close', 'Volume', 'Open'], axis=1, inplace=True)
d.dropna(inplace=True)
#make 2 dataframe
d.set_index(d['Adj Close'], inplace=True)
buy_price = d.index[d['Crossover_Long_Change']==1]
sell_price = d.index[d['Crossover_Long_Change']==-1]
d['Crossover_Long_Change'].value_counts()
profit_loss = (sell_price - buy_price)*10
commision = buy_price*.01
position_value = (buy_price + commision)*10
percent_return = (profit_loss/position_value)*100
percent_rounded = np.round(percent_return, decimals=2)
prices = {
"Buy Price" : buy_price,
"Sell Price" : sell_price,
"P/L" : profit_loss,
"Return": percent_rounded
}
df = pd.DataFrame(prices)
print('The return was {}%, and profit or loss was ${} '.format(np.round(df['Return'].sum(), decimals=2),
np.round(df['P/L'].sum(), decimals=2)))
d
将熊猫作为pd导入
将数据读取器导入web
将日期时间导入为dt
以yf形式导入yf财务
将numpy作为np导入
股票=['BA','AMD','AAPL']
开始=日期时间(2018年1月1日)
end=dt.datetime(2020,1,1)
d=web.DataReader(股票,“雅虎”,开始,结束)
d['sma50']=np.round(d['Close'].rolling(窗口=2.mean(),小数=2)
d['sma200']=np.四舍五入(d['Close'].滚动(窗口=14).平均值(),小数=2)
d['200-50']=d['sma200']-d['sma50']
_买入=-2
d['Crossover_Long']=np.其中(d['200-50']<\u buy,1,0)
d['Crossover_Long_Change']=d.Crossover_Long.diff()
d['buy']=np.其中(d['Crossover\u Long\u Change']==1,'buy','n/a')
d['sell']=np.其中(d['Crossover\u Long\u Change']==-1,'sell','n/a')
pd.set_选项('display.max_rows',5093)
d、 下降(['High'、'Low'、'Close'、'Volume'、'Open'],轴=1,在位=True)
d、 dropna(就地=真)
#生成2个数据帧
d、 设置索引(d['Adj Close'],就地=真)
买入价格=d.指数[d['Crossover\u Long\u Change']=1]
卖出价格=d.指数[d['Crossover\u Long\u Change']=-1]
d['Crossover_Long_Change'].值计数()
损益=(卖出价-买入价)*10
佣金=购买价格*.01
头寸价值=(买入价+佣金)*10
收益率=(损益/头寸价值)*100
四舍五入百分比=np.四舍五入(返回百分比,小数=2)
价格={
“买入价”:买入价,
“售价”:售价,
“损益”:损益,
“回报”:四舍五入的百分比
}
df=pd.数据帧(价格)
print('返回值为{}%,损益为${}'。格式(np.round(df['return'].sum(),小数=2),
np.round(df['P/L'].sum(),小数=2)
D
我在你的代码中尝试了3只股票,它会返回所有3只股票的数据,我不确定我是否理解你面临的问题
import pandas as pd
import pandas_datareader as web
import datetime as dt
stocks = ['BA', 'AMD', 'AAPL']
start = dt.datetime(2018, 1, 1)
end = dt.datetime(2020, 1, 1)
d = web.DataReader(stocks, 'yahoo', start, end)
print(d)
输出:
Attributes Adj Close Close ... Open Volume
Symbols BA AMD AAPL BA AMD AAPL ... BA AMD AAPL BA AMD AAPL
Date ...
2018-01-02 282.886383 10.980000 166.353714 296.839996 10.980000 172.259995 ... 295.750000 10.420000 170.160004 2978900.0 44146300.0 25555900.0
2018-01-03 283.801239 11.550000 166.324722 297.799988 11.550000 172.229996 ... 295.940002 11.610000 172.529999 3211200.0 154066700.0 29517900.0
2018-01-04 282.724396 12.120000 167.097290 296.670013 12.120000 173.029999 ... 297.940002 12.100000 172.539993 4171700.0 109503000.0 22434600.0
2018-01-05 294.322296 11.880000 168.999741 308.839996 11.880000 175.000000 ... 296.769989 12.190000 173.440002 6177700.0 63808900.0 23660000.0
2018-01-08 295.570740 12.280000 168.372040 310.149994 12.280000 174.350006 ... 308.660004 12.010000 174.350006 4124900.0 63346000.0 20567800.0
... ... ... ... ... ... ... ... ... ... ... ... ... ...
2019-12-24 331.030457 46.540001 282.831299 333.000000 46.540001 284.269989 ... 339.510010 46.099998 284.690002 4120100.0 44432200.0 12119700.0
2019-12-26 327.968689 46.630001 288.442780 329.920013 46.630001 289.910004 ... 332.700012 46.990002 284.820007 4593400.0 57562800.0 23280300.0
2019-12-27 328.187408 46.180000 288.333313 330.140015 46.180000 289.799988 ... 330.200012 46.849998 291.119995 4124000.0 36581300.0 36566500.0
2019-12-30 324.469513 45.520000 290.044617 326.399994 45.520000 291.519989 ... 330.500000 46.139999 289.459991 4525500.0 41149700.0 36028600.0
2019-12-31 323.833313 45.860001 292.163818 325.760010 45.860001 293.649994 ... 325.410004 45.070000 289.929993 4958800.0 31673200.0 25201400.0
我在你的代码中尝试了3种股票,它会返回所有3种股票的数据,我不确定我是否理解你面临的问题
import pandas as pd
import pandas_datareader as web
import datetime as dt
stocks = ['BA', 'AMD', 'AAPL']
start = dt.datetime(2018, 1, 1)
end = dt.datetime(2020, 1, 1)
d = web.DataReader(stocks, 'yahoo', start, end)
print(d)
输出:
Attributes Adj Close Close ... Open Volume
Symbols BA AMD AAPL BA AMD AAPL ... BA AMD AAPL BA AMD AAPL
Date ...
2018-01-02 282.886383 10.980000 166.353714 296.839996 10.980000 172.259995 ... 295.750000 10.420000 170.160004 2978900.0 44146300.0 25555900.0
2018-01-03 283.801239 11.550000 166.324722 297.799988 11.550000 172.229996 ... 295.940002 11.610000 172.529999 3211200.0 154066700.0 29517900.0
2018-01-04 282.724396 12.120000 167.097290 296.670013 12.120000 173.029999 ... 297.940002 12.100000 172.539993 4171700.0 109503000.0 22434600.0
2018-01-05 294.322296 11.880000 168.999741 308.839996 11.880000 175.000000 ... 296.769989 12.190000 173.440002 6177700.0 63808900.0 23660000.0
2018-01-08 295.570740 12.280000 168.372040 310.149994 12.280000 174.350006 ... 308.660004 12.010000 174.350006 4124900.0 63346000.0 20567800.0
... ... ... ... ... ... ... ... ... ... ... ... ... ...
2019-12-24 331.030457 46.540001 282.831299 333.000000 46.540001 284.269989 ... 339.510010 46.099998 284.690002 4120100.0 44432200.0 12119700.0
2019-12-26 327.968689 46.630001 288.442780 329.920013 46.630001 289.910004 ... 332.700012 46.990002 284.820007 4593400.0 57562800.0 23280300.0
2019-12-27 328.187408 46.180000 288.333313 330.140015 46.180000 289.799988 ... 330.200012 46.849998 291.119995 4124000.0 36581300.0 36566500.0
2019-12-30 324.469513 45.520000 290.044617 326.399994 45.520000 291.519989 ... 330.500000 46.139999 289.459991 4525500.0 41149700.0 36028600.0
2019-12-31 323.833313 45.860001 292.163818 325.760010 45.860001 293.649994 ... 325.410004 45.070000 289.929993 4958800.0 31673200.0 25201400.0
我认为误差来自你的移动平均线和直线 d['sma50']=np.round(d['Close'].rolling(窗口=2.mean(),小数=2) 因为d代表3只股票,我认为你必须把每只股票分开,分别计算移动平均数 编辑:我只尝试了两种股票(BA和AMD),但这不是最好的解决方案,因为我总是重复自己的每一行。 我只是Python的初学者,但这可能会帮助您找到问题的解决方案 附言:最后一行不太好用(那是损益表和退货的打印) "
将熊猫作为pd导入
将数据读取器导入web
将日期时间导入为dt
股票1=['BA']
股票2=['AMD']
开始=日期时间(2018年1月1日)
end=dt.datetime(2020,1,1)
d1=web.DataReader(stock1,'yahoo',start,end)
d2=web.DataReader(stock2,'yahoo',start,end)
d1['sma50']=np.四舍五入(d1['Close'].滚动(窗口=2)。平均值(),小数=2)
d2['sma50']=np.四舍五入(d2['Close'].滚动(窗口=2)。平均值(),小数=2)
d1['sma200']=np.四舍五入(d1['Close'].滚动(窗口=14)。平均值(),小数=2)
d2['sma200']=np.四舍五入(d2['Close'].滚动(窗口=14)。平均值(),小数=2)
d1['200-50']=d1['sma200']-d1['sma50']
d2['200-50']=d2['sma200']-d2['sma50']
_买入=-2
d1['Crossover_Long']=np.其中(d1['200-50']<\u buy,1,0)
d2['Crossover_Long']=np.其中(d2['200-50']<\u buy,1,0)
d1['Crossover_Long_Change']=d1.Crossover_Long.diff()
d2['Crossover_Long_Change']=d2.Crossover_Long.diff()
d1['buy']=np.其中(d1['Crossover\u Long\u Change']==1,'buy','n/a')
d2['buy']=np.其中(d2['Crossover\u Long\u Change']==1,'buy','n/a')
d1['sell_BA']=np.其中(d1['Crossover_Long_Change']==-1,'sell','n/a')
d2['sell\u AMD']=np.其中(d2['Crossover\u Long\u Change']==-1,'sell','n/a')
pd.set_选项('display.max_rows',5093)
d1.下降([‘高’、‘低’、‘关’、‘音量’、‘开’],轴=1,在位=真)
d2.下降([‘高’、‘低’、‘关’、‘音量’、‘开’],轴=1,在位=真)
d2.dropna(就地=真)
d1.dropna(就地=真)
d1.设置索引(“调整关闭”,就地=真)
d2.设置索引(“调整关闭”,就地=真)
买入价格=np.数组(d1.索引[d1['Crossover\u Long\u Change']=1])
买入价格AMD=np.array(d2.index[d2['Crossover\u Long\u Change']=1])
卖出价=np.数组(d1.索引[d1['Crossover\u Long\u Change']=-1])
卖出价格AMD=np.array(d2.index[d2['Crossover\u Long\u Change']=-1])
d1['Crossover_Long_Change'].值计数()
d2['Crossover\u Long\u Change'].值\u计数()
盈亏平衡=(卖出价平衡-买入价平衡)*10
利润损失金额=(卖出价格金额-买入价格金额)*10
佣金=买入价*01
佣金=购买价格*01
仓位价值=(买入价格+佣金)*10
仓位价值金额=(买入价格金额+佣金金额)*10
收益率=np.四舍五入((损益/头寸价值)*100),小数=2)
收益率=np.四舍五入((损益/头寸价值)*100),小数=2)
价格_BA={
“买入价格BA”:[买入价格BA],
“售价BA”:[售价BA],
“损益基础”:[损益基础],
“返回BA”:[返回百分比]}
df=pd.数据帧(价格)
print('返回值为{}%,损益为${}'。格式(np.round(df['return BA'].sum(),小数=2),
np.round(df['P/L BA'].sum(),小数=2)))
价格_AMD={
“买入价格AMD”:[买入价格AMD],
“售价AMD”:[售价AMD],
“P/L AM