class-fWEBDATA {fImport}

Class "fWEBDATA"

Description

The class fWEBDATA represents a download from the internet.

Objects from the Class

Objects can be created by calls of the import or series functions.

Slots

call:

Object of class "call": the call of the applied function.

data:

Object of class "data.frame": the data as downloaded formatted as a data.frame.

param:

Object of class "character": a character vector whose elements contain the values of selected parameters of the argument list.

title:

Object of class "character": a character string with the name of the download. This can be overwritten specifying a user defined input argument.

description:

Object of class " character": a character string with an optional user defined description. By default just the current date and user when the test was applied will be returned.

Methods

show

signature(object = "fWEBDATA"): prints an object of class 'fWEBDATA'.

Note

The import and series functions like fredImport and fredSeries are typical examples which show how to implement download functions as simple timeSeries objects or as more complicate fWEBDATA S4 objects. Inspect the R code and feel free to create your own download functions and objects.

References

Diethelm Wuertz, Yohan Chalabi, and Andrew Ellis, (2010); Financial Market Data for R/Rmetrics, Rmetrics eBook, Rmetrics Association and Finance Online, Zurich, www.rmetrics.org.