根据用户输入从Yahoo将股票数据下载到R Shiny

Question

Got a problem how to download data into R shiny.

I have created a selectInput list with stock symbols like AAPL , MCD , MMM and so on with button Download data.

And I need to based on user input when is selected let's say AAPL to fetch the data from yahoo and ie create a chart.

I'm using pdfetch_YAHOO() function to get the data.

Can anyone give a hand?

Answer 1

Well, I think Yahoo turned off it's API that did this back in May of 2017. Here is an alternative way of downloading historical time series prices for equities.

library(quantmod)
e <- new.env()
getSymbols("IBM;MSFT", env = e)
pframe <- do.call(merge, as.list(e))
head(pframe)

Also...

require(quantmod)
getSymbols(c("MSFT", "AAPL", "GOOGL"), auto.assign = TRUE, from = "2005-01-05",src="google")