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poLCA: An R Package for Polytomous Variable Latent Class Analysis

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Linzer, Drew A., Lewis, Jeffrey B.·2011·Journal of Statistical Software

Abstract

poLCA is a software package for the estimation of latent class and latent class regression models for polytomous outcome variables, implemented in the R statistical computing environment. Both models can be called using a single simple command line. The basic latent class model is a finite mixture model in which the component distributions are assumed to be multi-way cross-classification tables with all variables mutually independent. The latent class regression model further enables the researcher to estimate the effects of covariates on predicting latent class membership. poLCA uses expectation-maximization and Newton-Raphson algorithms to find maximum likelihood estimates of the model parameters.

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Metadata

Authors
Linzer, D. A., & Lewis, J. B.
Venue
Journal of Statistical Software
Published
2011
Volume
42
Issue
10
ISSN
1548-7660 (ISSN-L)
OpenAlex
W2171814052
Cited by
1,636
References
28
FWCI
40.75
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: poLCA: An R Package for Polytomous Variable Latent Class Analysis. https://app.cochat.ai/papers/10.18637/jss.v042.i10
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Linzer, D. A., & Lewis, J. B. (2011). poLCA: An R Package for Polytomous Variable Latent Class Analysis. Journal of Statistical Software. https://doi.org/10.18637/jss.v042.i10

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.