the name of the quote symbol to download. See the
web page of the data provider for information about the quote symbols.
start, end
strings representing the start and end date
of the period to download. The format is "mm dd yyyy".
Default values are "1 2 1991" and yesterday.
quote
download opening-, high-, low-, closing-quotes, or volume?
provider
the name of the data provider. Currently implemented
is "yahoo". See http://quote.yahoo.com/ for more
information.
method
tool to be used for downloading the data. See
download.file for the available download methods.
Value
A time series containing the data in physical time, i.e., weekends,
holidays, and missing days are filled with NAs. The time scale
is given in Julian dates.