[R-SIG-Finance] Earliest available data on yahoo to download

[Joshua Ulrich]

On Wed, Jul 1, 2009 at 9:05 PM, R_help Help<rhelpacc at gmail.com> wrote:
> Is there anyway to avoid this default at all? Thank you.
>

You can use the Defaults package (it's loaded with quantmod) to set
your own preferred default arguments to many functions.  See the
Defaults package vignette for details, but this should get you
started:

> library(quantmod)
> setDefaults(getSymbols.yahoo,from='1900-01-01')
> getSymbols("AAPL")
[1] "AAPL"
> head(AAPL)
           AAPL.Open AAPL.High AAPL.Low AAPL.Close AAPL.Volume AAPL.Adjusted
1984-09-07     26.50     26.87    26.25      26.50     2981600          3.02
1984-09-10     26.50     26.62    25.87      26.37     2346400          3.01
1984-09-11     26.62     27.37    26.62      26.87     5444000          3.07
1984-09-12     26.87     27.00    26.12      26.12     4773600          2.98
1984-09-13     27.50     27.62    27.50      27.50     7429600          3.14
1984-09-14     27.62     28.50    27.62      27.87     8826400          3.18

HTH,
Josh
--
http://www.fosstrading.com

> On Wed, Jul 1, 2009 at 10:01 PM, Sean Carmody<seancarmody at gmail.com> wrote:
>> Assuming you are using quantmod, try the from argument. For example:
>>
>> getSymbols("^AORD", from="2000-01-01")
>>
>> will retrieve data going back to 2000 from yahoo while
>>
>> getSymbols("^AORD")
>>
>> defaults to just retrieving data from the last two years.
>>
>> Sean.
>>
>> --
>> Sean Carmody
>>
>> The Stubborn Mule
>> http://www.stubbornmule.net
>> http://twitter.com/seancarmody
>>
>