Section: Ecology
Topic: Biology of interactions, Ecology, Statistics

Corrigendum: Trait matching without traits: using correspondence analysis to investigate the latent structure of interaction networks

Nicvert, Lisa1, 2  ; Fritz, Hervé3, 4 ; Dray, Stéphane1 
1 Universite Claude Bernard Lyon 1, LBBE, UMR 5558, CNRS, VAS – Villeurbanne, France
2 FRB-Cesab – Montpellier, France
3 REHABS, International Research Laboratory, CNRS-NMU-UCBL, Nelson Mandela University – George, South Africa
4 Sustainability Research Unit, Nelson Mandela University – George, South Africa

Corresponding author(s): Nicvert, Lisa (lisa.nicvert@fondationbiodiversite.fr)

10.24072/pcjournal.610 - Peer Community Journal, Volume 5 (2025), article no. e86

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corrects Trait matching without traits: using correspondence analysis to investigate the latent structure of interaction networks

In the original article, Equation (2) should read $\mathbf{D_r}^{-1} \mathbf{P_0} \mathbf{D_c}^{-1} = \mathbf{U D V}^\top$ instead of $\mathbf{P_0} = \mathbf{U D V}^\top$. The paragraph directly above Equation (2) should thus be reformulated as: ``CA is based on the generalized singular value decomposition of the matrix $\mathbf{D_r}^{-1} \mathbf{P_0} \mathbf{D_c}^{-1}$, where $\mathbf{P_0} = \mathbf{P} - \mathbf{r}\mathbf{c}^\top$ is the double centered matrix of interaction frequencies $\mathbf{P}$."

Published online:
DOI: 10.24072/pcjournal.610
Type: Research article
Keywords: Interaction niche; Trait matching; Correspondence analysis; Reciprocal scaling; Ecological network

Nicvert, Lisa 1, 2; Fritz, Hervé 3, 4; Dray, Stéphane 1

1 Universite Claude Bernard Lyon 1, LBBE, UMR 5558, CNRS, VAS – Villeurbanne, France
2 FRB-Cesab – Montpellier, France
3 REHABS, International Research Laboratory, CNRS-NMU-UCBL, Nelson Mandela University – George, South Africa
4 Sustainability Research Unit, Nelson Mandela University – George, South Africa
License: CC-BY 4.0
Copyrights: The authors retain unrestricted copyrights and publishing rights 
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     author = {Nicvert, Lisa and Fritz, Herv\'e and Dray, St\'ephane},
     title = {Corrigendum: {Trait} matching without traits: using correspondence analysis to investigate the latent structure of interaction networks},
     journal = {Peer Community Journal},
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Nicvert, L.; Fritz, H.; Dray, S. Corrigendum: Trait matching without traits: using correspondence analysis to investigate the latent structure of interaction networks. Peer Community Journal, Volume 5 (2025), article  no. e86. https://doi.org/10.24072/pcjournal.610

PCI peer reviews and recommendation, and links to data, scripts, code and supplementary information: 10.24072/pci.ecology.100765

Conflict of interest of the recommender and peer reviewers:
The recommender in charge of the evaluation of the article and the reviewers declared that they have no conflict of interest (as defined in the code of conduct of PCI) with the authors or with the content of the article.

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