R 如何检索特定日期和股票代码的股票价格?
我有一张桌子R 如何检索特定日期和股票代码的股票价格?,r,quantmod,R,Quantmod,我有一张桌子 Ticker. Date AAPL. 1/1/2020 AAPL. 1/2/2020 KO. 1/1/2020 KO. 1/20/2020 我想在同一个表中再添加两列,并给出收盘价和调整价 Ticker. Date. Adj_Price. Closing_Price AAPL. 1/1/2020. 234 235 AAPL. 1/2/202
Ticker. Date
AAPL. 1/1/2020
AAPL. 1/2/2020
KO. 1/1/2020
KO. 1/20/2020
我想在同一个表中再添加两列,并给出收盘价和调整价
Ticker. Date. Adj_Price. Closing_Price
AAPL. 1/1/2020. 234 235
AAPL. 1/2/2020. 245 249
KO. 1/1/2020 30 32
KO. 1/20/2020 33 44
我认为我们可以使用quant mod library来实现这一点。这是否有效:
> tickers = c('AAPL', 'KO')
> portfolio <- NULL
> for(t in tickers){
+ portfolio <- cbind(portfolio, getSymbols(t, from = '2020-01-01', to = '2020-01-21', auto.assign = 0)[,c(4,6)])
+ }
> portfolio
AAPL.Close AAPL.Adjusted KO.Close KO.Adjusted
2020-01-02 75.0875 74.57304 54.99 53.58738
2020-01-03 74.3575 73.84803 54.69 53.29503
2020-01-06 74.9500 74.43647 54.67 53.27554
2020-01-07 74.5975 74.08639 54.25 52.86625
2020-01-08 75.7975 75.27816 54.35 52.96370
2020-01-09 77.4075 76.87714 55.34 53.92844
2020-01-10 77.5825 77.05093 55.53 54.11360
2020-01-13 79.2400 78.69707 56.13 54.69830
2020-01-14 78.1700 77.63441 56.00 54.57161
2020-01-15 77.8350 77.30170 56.70 55.25376
2020-01-16 78.8100 78.27002 56.82 55.37069
2020-01-17 79.6825 79.13655 56.94 55.48764
> portfolio[index(portfolio) %in% as.Date(c('2020-01-15','2020-01-16'))]
AAPL.Close AAPL.Adjusted KO.Close KO.Adjusted
2020-01-15 77.835 77.30170 56.70 55.25376
2020-01-16 78.810 78.27002 56.82 55.37069
>
tickers=c('AAPL','KO')
>证券投资组合(t股){
+投资组合
AAPL.关闭AAPL.已调整KO.关闭KO.已调整
2020-01-02 75.0875 74.57304 54.99 53.58738
2020-01-03 74.3575 73.84803 54.69 53.29503
2020-01-06 74.9500 74.43647 54.67 53.27554
2020-01-07 74.5975 74.08639 54.25 52.86625
2020-01-08 75.7975 75.27816 54.35 52.96370
2020-01-09 77.4075 76.87714 55.34 53.92844
2020-01-10 77.5825 77.05093 55.53 54.11360
2020-01-13 79.2400 78.69707 56.13 54.69830
2020-01-14 78.1700 77.63441 56.00 54.57161
2020-01-15 77.8350 77.30170 56.70 55.25376
2020-01-16 78.8100 78.27002 56.82 55.37069
2020-01-17 79.6825 79.13655 56.94 55.48764
>投资组合[指数(投资组合)%以截至日期的百分比表示(c('2020-01-15','2020-01-16'))]
AAPL.关闭AAPL.已调整KO.关闭KO.已调整
2020-01-15 77.835 77.30170 56.70 55.25376
2020-01-16 78.810 78.27002 56.82 55.37069
>
您可以使用任何日期进行子集设置。也许可以阅读手册,然后带着更具体的问题回来?请查看
tidyquant::tq_get
。如果Fund是数据集名称,那么它是否有效?Fund$adjClose谢谢Karthik。不,因为它是一个庞大的数据集,并且无法手动输入日期。Retr中是否有逻辑eving,如中所示,您只需要周一的价格或两天之间的具体差距?只需要当天的收盘价和当天调整后的收盘价。我是编程新手,使用此Fund$adjClose通常是日期范围内的价格,不确定为什么要随机选择中间几天?下面是一个示例为什么,这是一个包含收入、利润等以及财务结果日期的基本数据集。我希望添加截至财务结果状态的收盘价。