fRegression-package {fRegression} | R Documentation |
Package of functions for regression modelling.
Package: | fRegression |
Type: | Package |
Version: | 261.73.1 |
Date: | 2008 |
License: | GPL Version 2 or later |
Copyright: | (c) 1999-2008 Diethelm Wuertz, Rmetrics Foundation |
URL: | http://www.rmetrics.org |
Regression modelling, especially linear modelling, is a widely used application in finance. In finance it mostly appears in the form that a variable is modelled as a linear or more complex relationship as a function of other variables. For example the decision of buying or selling in a trading model may be triggered by the outcome of a regression model, e.g. neural networks are a well known tool in this field.
Rmetrics has build a simple interface to several regression
models available in the base and contributed packages of R. By
default the following regression models are interfaced and available
through the function regFit
:
...
All the functions of the regFit
family
return the same object, an object of class "fREG"
with the
following slots:
call, formula, method, data, fit, residuals, fitted, title, and
description.
Thus, independent of the regression model applied we can use the same S4 methods for all types of regression. This includes, print, plot, summary, predict, fitted, residuals, coef, and formula methods.
Evenmore the user can add further regression models to this framework either his own implementations or implementations available through contributed R packages.
contains functions to simulate artificial regression models.
Functions:
regSim | Simulates artificail regression model data sets. |
contains functions to fit the parameters regression models
Functions:
regFit | Estimates the parameters of a regression model, |
gregFit | Estimates the parameters of a generalized regression model, |
fitted | Extracts fitted values from a fitted 'fREG' object, |
residuals | Extracts residuals from a fitted 'fREG' object, |
coef | Extracts coefficients from a fitted 'fREG' object, |
formula | Extracts formula expression from a fitted 'fREG' object. |
contains functions to forcecast from a regression model.
Functions:
predict | Forecasts from an object of class 'fREG'. |
Diethelm Wuertz and Rmetrics Core Team.