[英]download stock data with R
我正在嘗試使用以下代碼用R下載股票數據:
#load packages
library(stockPortfolio)
library(quadprog)
#get data of returns
stocks <- c(
"SPY",
"EFA",
"IWM",
"VWO",
"LQD",
"HYG")
returns <- getReturns(names(stocks), freq="week")
但我收到此錯誤:
it's not possible to open the connection: HTTP status: '404 not found'
#load packages
library(stockPortfolio)
library(quadprog)
#get data of returns
stocks <- c(
"SPY",
"EFA",
"IWM",
"VWO",
"LQD",
"HYG")
returns <- getReturns(stocks, freq="week")
returns
Time Scale: week
Average Return
SPY EFA IWM VWO LQD HYG
0.0011957600 0.0002371890 0.0012480337 0.0005973494 0.0011942381 0.0012353135
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