Search Results - isPartOf:"Software"

lawstat: An R Package for Law, Public Policy and Biostatistics

Hui, Wallace; Gel, Yulia R.; Gastwirth, Joseph L. - In: Journal of Statistical Software 28 (2008) i03

We present a new R software package lawstat that contains statistical tests and procedures that are utilized in various …

Persistent link: https://www.econbiz.de/10008460738

Automatic Time Series Forecasting: The forecast Package for R

Hyndman, Rob J.; Khandakar, Yeasmin - In: Journal of Statistical Software 27 (2008) i03

Automatic forecasts of large numbers of univariate time series are often needed in business and other contexts. We describe two automatic forecasting algorithms that have been implemented in the forecast package for R. The first is based on innovations state space models that underly exponential...

Persistent link: https://www.econbiz.de/10008460746

FlexMix Version 2: Finite Mixtures with Concomitant Variables and Varying and Constant Parameters

Grün, Bettina; Leisch, Friedrich - In: Journal of Statistical Software 28 (2008) i04

flexmix provides infrastructure for flexible fitting of finite mixture models in R using the expectation-maximization (EM) algorithm or one of its variants. The functionality of the package was enhanced. Now concomitant variable models as well as varying and constant parameters for the component...

Persistent link: https://www.econbiz.de/10008460747

Implementing a Class of Permutation Tests: The coin Package

Hothorn, Torsten; Hornik, Kurt; Wiel, Mark A. van de; … - In: Journal of Statistical Software 28 (2008) i08

The R package coin implements a unified approach to permutation tests providing a huge class of independence tests for nominal, ordered, numeric, and censored data as well as multivariate data at mixed scales. Based on a rich and flexible conceptual framework that embeds different permutation...

Persistent link: https://www.econbiz.de/10008460749

Model Averaging Software for Dichotomous Dose Response Risk Estimation

Wheeler, Matthew W.; Bailer, A. John - In: Journal of Statistical Software 26 (2008) i05

estimation. In certain circumstances this technique is computationally complex, requiring sophisticated software to carry out the … computation. We introduce software that implements model averaging for risk assessment based upon dichotomous dose-response data …. This software, which we call Model Averaging for Dichotomous Response Benchmark Dose (MADr-BMD), fits the quantal response …

Persistent link: https://www.econbiz.de/10008460750

Specification of Exponential-Family Random Graph Models: Terms and Computational Aspects

Morris, Martina; Handcock, Mark S.; Hunter, David R. - In: Journal of Statistical Software 24 (2008) i04

Exponential-family random graph models (ERGMs) represent the processes that govern the formation of links in networks through the terms selected by the user. The terms specify network statistics that are sufficient to represent the probability distribution over the space of networks of that...

Persistent link: https://www.econbiz.de/10008460755

MLDS: Maximum Likelihood Difference Scaling in R

Knoblauch, Kenneth; Maloney, Laurence T. - In: Journal of Statistical Software 25 (2008) i02

The MLDS package in the R programming language can be used to estimate perceptual scales based on the results of psychophysical experiments using the method of difference scaling. In a difference scaling experiment, observers compare two supra-threshold differences (a,b) and (c,d) on each trial....

Persistent link: https://www.econbiz.de/10008460756

Software for Implementing the Sequential Elimination of Level Combinations Algorithm

Johnson, Kjell; Mandal, Abhyuday; Ding, Tan - In: Journal of Statistical Software 25 (2008) i06

Genetic algorithms (GAs) are a popular technology to search for an optimum in a large search space. Using new concepts of forbidden array and weighted mutation, Mandal, Wu, and Johnson (2006) used elements of GAs to introduce a new global optimization technique called sequential elimination of...

Persistent link: https://www.econbiz.de/10008460759

Econometrics in R: Past, Present, and Future

Zeileis, Achim; Koenker, Roger - In: Journal of Statistical Software 27 (2008) i01

Recently, computational methods and software have been receiving more attention in the econometrics literature … econometrics software packages written in R and made available on the Comprehensive R Archive Network. This special volume on …

Persistent link: https://www.econbiz.de/10008460762

Prototype Packages for Managing and Animating Longitudinal Network Data: dynamicnetwork and rSoNIA

Bender-deMol, Skye; Morris, Martina; Moody, James - In: Journal of Statistical Software 24 (2008) i07

) software to create animated movies of changing networks from within R is also demonstrated. …

Persistent link: https://www.econbiz.de/10008460764