Return data type

The Quandl() function returns a data.frame by default. It can return other classes via the type argument.

The possible values for type are:

In this exercise, you will learn how to use the type argument to make Quandl() return an xts and a zoo object.

The Quandl package has already been loaded for you.

Use the type argument to make Quandl() import the GDP data as a xts object. Assign the result to gdp_xts.
Use str() to view the structure of gdp_xts.
Use the type argument to make Quandl() import the GDP data as a zoo object. Assign the result to gdp_zoo.
Use str() to view the structure of gdp_zoo.