Coefficient-wise tree-based varying coefficient regression with vcrpart

R. Bürgin,G. Ritschard

Published 2017 in Journal of Statistical Software

ABSTRACT

The tree-based TVCM algorithm and its implementation in the R package vcrpart are introduced for generalized linear models. The purpose of TVCM is to learn whether and how the coefficients of a regression model vary by moderating variables. A separate partition is built for each potentially varying coefficient, allowing the user to specify coefficient-specific sets of potential moderators, and allowing the algorithm to select moderators individually by coefficient. In addition to describing the algorithm, the TVCM is evaluated using a benchmark comparison and a simulation study and the R commands are demonstrated by means of empirical applications.

PUBLICATION RECORD

  • Publication year

    2017

  • Venue

    Journal of Statistical Software

  • Publication date

    2017-08-29

  • Fields of study

    Mathematics, Computer Science

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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