greybox2.0.2 package

Toolbox for Model Building and Forecasting

accuracy

Error measures for an estimated model

actuals

Function extracts the actual values from the function

aid

Automatic Identification of Demand

ALaplace

Asymmetric Laplace Distribution

alm

Augmented Linear Model

errorType

Functions that extracts type of error from the model

association

Measures of association

BCNormal

Box-Cox Normal Distribution

coef.alm

Coefficients of the model and their statistics

coefbootstrap

Bootstrap for parameters of models

nparam

Number of parameters and number of variates in the model

cramer

Calculate Cramer's V for categorical variables

detectdst

DST and Leap year detector functions

determination

Coefficients of determination

Distributions

Distribution functions of the greybox package

dsrboot

Data Shape Replication Bootstrap

error-measures

Error measures

extractScale

Functions to extract scale and standard error from a model

FNormal

Folded Normal Distribution

gnorm

The generalized normal distribution

graphmaker

Linear graph construction function

greybox

Grey box

polyprod

This function calculates parameters for the polynomials

hm

Half moment of a distribution and its derivatives.

implant

Implant the scale model in the location model

InformationCriteria

Corrected Akaike's Information Criterion and Bayesian Information Crit...

isFunctions

Greybox classes checkers

predict.greybox

Forecasting using greybox functions

Laplace

Laplace Distribution

lmCombine

Combine regressions based on information criteria

lmDynamic

Combine regressions based on point information criteria

LogitNormal

Logit Normal Distribution

mcor

Multiple correlation

measures

Error measures for the provided forecasts

outlierdummy

Outlier detection and matrix creation

pcor

Partial correlations

pinball

Pinball function

plot.greybox

Plots of the fit and residuals

pointIC

Point AIC

pointLik

Point likelihood values

rectNormal

Rectified Normal Distribution

reexports

Objects exported from other packages

rmcb

Regression for Multiple Comparison with the Best

ro

Rolling Origin

SDistribution

S Distribution

sm

Scale Model

spread

Construct scatterplot / boxplots for the data

stepwise

Stepwise selection of regressors

tableplot

Construct a plot for categorical variable

temporaldummy

Dummy variables for provided seasonality type

TPLNormal

Three Parameter Log Normal Distribution

xregExpander

Exogenous variables expander

xregMultiplier

Exogenous variables cross-products

xregTransformer

Exogenous variables transformer

Implements functions and instruments for regression model building and its application to forecasting. The main scope of the package is in variables selection and models specification for cases of time series data. This includes promotional modelling, selection between different dynamic regressions with non-standard distributions of errors, selection based on cross validation, solutions to the fat regression model problem and more. Models developed in the package are tailored specifically for forecasting purposes. So as a results there are several methods that allow producing forecasts from these models and visualising them.

  • Maintainer: Ivan Svetunkov
  • License: LGPL-2.1
  • Last published: 2024-08-27