CODEWITHSUNDEEP
r
Filipe Ferminiano
Filipe Ferminiano

Reputation: 8801

Handling internet connection R

I`m trying to download several stocks from google, but every time the connection stops, R stops the loop. How can I handle this problem?

stocks <- c(
  'MSFT',
  'GOOG',
   ...
)



for (symbol in stocks)
{
  stock_price <- getSymbols(symbol,src='google', from=startDate,to=endDate,auto.assign = FALSE)
  prices[,j] <- stock_price[,1]
  j <- j + 1


}

Upvotes: 1

Views: 139

Answers (1)

Tim Biegeleisen
Tim Biegeleisen

Reputation: 522396

From the R manual "quantmod.pdf:

If auto.assign=FALSE or env=NULL (as of 0.4-0) the data will be returned
from the call, and will require the user to assign the results himself.
Note that only one symbol at a time may be requested when auto assignment is disabled.

You are trying to request more than one ticket symbol at a time with the auto.assign parameter set to false and this is not allowed. However, you should be able to obtain all your symbols at once by adapting the following code:

data <- new.env()

getSymbols.extra(stocks, src = 'google', from = startDate, to = endDate, env = data, auto.assign = T)
plot(data$MSFT)

Pay careful attention to the R manual for getSymbols

"Data is fetched through one of the available getSymbols methods and saved in the env specified - the .GloblEnv by default.

Upvotes: 1

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