[R] Download multiple stock quotes in a loop

[Vladimir Eremeev]

Owe Jessen wrote:
> 
> Hi all,
> 
> this should be a simple question, but I haven't been able to do it 
> right. I am trying to download multiple stock quotes in a loop, so that 
> every timeseries is safed with the symbol of the stock. Can anybody help 
> me out? Here's the code:
> 
> require(tseries)
> startd <- "2000-06-01"
> stocks <- c("bmw.de", "vow.de", "dte.de")
> for(stock in stocks)
> stock <- as.timeSeries(get.hist.quote(instrument=stock, start=startd, 
> quote="Close", compress="d"))
> }
> 
> Thanks in advance,
> Owe
> 

The variable stock is assigned values twice in the cycle.
First, it gets the value of "bmw.de", and immediately after that it is
assigned with the result returned by as.timeSeries(  ... )

If you replace the interior of the loop with the

  assign(paste("stock.",stock,sep=""), as.timeSeries(get.hist.quote  [etc]))

you will get three variables, namely, stock.bmw.de, stock.vow.de and
stock.dte.de.
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