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rquantmod

How to access LSE data returned by getSymbols


I want to get OHLC data from google finance from London Stock Exchange. I've tried using:

> require(quantmod)
> getSymbols("LON:DRTY", src="google")
[1] "LON:DRTY"
> head(LON:DRTY)
Error in head(LON:DRTY) : object 'LON' not found

getSymbols seems to have returned the data, but I cannot access it. How do I actually get the data from the returned object?

Actually, I want to download data from Japan. For example:"TYO:2501" (https://www.google.com/finance?q=TYO%3A2501&ei=2aC6VOHcKsX1wAPa3YCoCg). However, getSymbols can't find it under tickers like "TYO:2501", "2501", "TYO%3A2501". I get '404 Not Found' or '400 Bad Request'.

> getSymbols("TYO:2502", from="2014-01-01", to="2014-05-03", src="google")

Solution

  • In this case getSymbols does not return a syntactically valid name. : is a binary operator in R, used to create sequences of numbers. So when you type head(LON:DRTY) R is looking for an object named LON and an object named DRTY in order to create a sequence. For example:

    > LON <- 1
    > DRTY <- 10
    > head(LON:DRTY)
    [1] 1 2 3 4 5 6
    

    I will fix this in a future release, but you can use one of these work-arounds in the meantime:

    > require(quantmod)
    > getSymbols("LON:DRTY",src="google")
    [1] "LON:DRTY"
    > # use backticks to reference the object
    > head(`LON:DRTY`)
               LON:DRTY.Open LON:DRTY.High LON:DRTY.Low LON:DRTY.Close LON:DRTY.Volume
    2012-08-01          0.43          0.45         0.41           0.44          410093
    2012-08-02         41.25         42.75        40.00          41.50          751816
    2012-08-03         41.00         44.00        41.00          42.75          582187
    2012-08-06         42.00         44.41        42.00          42.50          370042
    2012-08-07         42.00         44.00        40.75          42.00         1366845
    2012-08-08         42.00         42.50        42.00          42.25          437467
    > # manually assign the object to a "valid" name
    > LON.DRTY <- getSymbols("LON:DRTY",src="google",auto.assign=FALSE)
    > head(LON.DRTY)
               LON:DRTY.Open LON:DRTY.High LON:DRTY.Low LON:DRTY.Close LON:DRTY.Volume
    2012-08-01          0.43          0.45         0.41           0.44          410093
    2012-08-02         41.25         42.75        40.00          41.50          751816
    2012-08-03         41.00         44.00        41.00          42.75          582187
    2012-08-06         42.00         44.41        42.00          42.50          370042
    2012-08-07         42.00         44.00        40.75          42.00         1366845
    2012-08-08         42.00         42.50        42.00          42.25          437467
    > # use setSymbolLookup to specify the name
    > setSymbolLookup(LON.DRTY=list(name="LON:DRTY",src="google"))
    > getSymbols("LON.DRTY")
    [1] "LON.DRTY"
    > head(LON.DRTY)
               LON:DRTY.Open LON:DRTY.High LON:DRTY.Low LON:DRTY.Close LON:DRTY.Volume
    2012-08-01          0.43          0.45         0.41           0.44          410093
    2012-08-02         41.25         42.75        40.00          41.50          751816
    2012-08-03         41.00         44.00        41.00          42.75          582187
    2012-08-06         42.00         44.41        42.00          42.50          370042
    2012-08-07         42.00         44.00        40.75          42.00         1366845
    2012-08-08         42.00         42.50        42.00          42.25          437467