| getSymbols.yahoo {quantmod} | R Documentation |
Downloads Symbols to specified env
from ‘finance.yahoo.com’. This method is
not to be called directly, instead a call to
getSymbols(Symbols,src='yahoo') will in
turn call this method. It is documented for the
sole purpose of highlighting the arguments
accepted, and to serve as a guide to creating
additional getSymbols ‘methods’.
getSymbols.yahoo(Symbols,
env,
return.class = 'xts',
from = "2007-01-01",
to = Sys.Date(),
...)
Symbols |
a character vector specifying the names of each symbol to be loaded |
env |
where to create objects. (.GlobalEnv) |
return.class |
class of returned object |
from |
Retrieve data no earlier than this date. (1990-01-01) |
to |
Retrieve data through this date (Sys.Date()) |
... |
additional parameters |
Meant to be called internally by getSymbols (see also).
One of a few currently defined methods for loading data for use with quantmod. Essentially a simple wrapper to the underlying Yahoo! finance site's historical data download.
A call to getSymbols.yahoo will load into the specified
environment one object for each
Symbol specified, with class defined
by return.class. Presently this may be ts,
its, zoo, xts, or timeSeries.
Jeffrey A. Ryan
Yahoo Finance: http://finance.yahoo.com
## Not run:
# All 3 getSymbols calls return the same
# MSFT to the global environment
# The last example is what NOT to do!
## Method #1
getSymbols('MSFT',src='yahoo')
## Method #2
setDefaults(getSymbols,src='yahoo')
# OR
setSymbolLookup(MSFT='yahoo')
getSymbols('MSFT')
#########################################
## NOT RECOMMENDED!!!
#########################################
## Method #3
getSymbols.yahoo('MSFT',env=globalenv())
## End(Not run)