Code and data for: Competition-Induced Trait Variability Obscures Trait–Growth Relationships of Tree Seedlings

This dataset contains the analysis code and data accompanying the manuscript “Competition-Induced Trait Variability Obscures Trait–Growth Relationships of Tree Seedlings”. The workflow is implemented in a single R Markdown file; two small <i>.R </i>scripts provide core functions (model fitting and plotting). An HTML report is included for browsing results without running R.<b>Data</b><b>：</b>· <b>raw_trait_data.csv</b> — Main dataset containing measured environmental variables, competition treatments, species identity, growth rates, and PCA-derived trait axes. Columns include environmental factors (Light, Moisture, AP), treatments (Compete), species (<i>sp</i>), census year (<i>comp_year</i>), growth rates (<i>RGR</i>, <i>raw_RGR</i>), and PCA scores (<i>Above_PC1/2</i>, <i>Below_PC1/2</i>).· <b>AboveBelow_pca_results.RData</b> — R object storing PCA loadings and eigenvalues for above-ground and below-ground traits. Used to visualize trait loadings and variance explained in PCA biplots (Figures 2a–b).<b>Code:</b>· <b>Fit trait–RGR models.R</b> — core modelling functions (trait–RGR models, null models, TPD metrics).· <b>Core plotting functions.R</b> — core plotting functions used by the Rmd.· <b>Yang_code.Rmd</b> — Annotated R Markdown file containing all analysis code. This file reproduces both the main and supplementary analyses, and generates three figures reported in the manuscript.· <b>Yang_code.html</b> — rendered report from the Rmd (view-only; open in a browser).<b>session_info.txt</b> — R session information (R version, OS, and package versions).<br>