Given a currency symbol and a time interval (in dates) this function returns the bid and ask time series of currency rates.
olinda_get_currency(
symbol,
start_date,
end_date = NULL,
as = c("tibble", "xts", "data.frame", "text"),
parity = FALSE
)currency symbol
time interval initial date
time interval last date
the object's returning type
TRUE returns the parity quotation (default FALSE
currency quoted in BRL)
The symbol argument is a three digits character which represents one currency.
The symbols can be obtained with list_currencies.
The time series date range is defined by start_date and end_date.
If end_date is not passed, it is set equals to start_date.
The parity argument defaults to FALSE, which means that the returned data is quoted in BRL.
If it is TRUE the returned data is quoted in USD, for type A currencies and for type B currencies it is
quoted as 1 USD in CURRENCY. For example, AUD, which is type B, returns 1 USD in AUD.
The time series with the bid and ask currency rates regarding the given symbol quoted in BRL.
The default returning is a tibble-fashioned data.frame with
the three columns: date, ask and bid.
The as argument also accepts data.frame to return old fashioned data frames,
xts to return a xts object with two variables (bid and ask) and text which returns
the text content download from BCB site.
# NOT RUN {
olinda_get_currency("USD", "2017-03-01", "2017-03-10")
# }
# NOT RUN {
# }
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