Raw data and R script for the paper "Beyond single invaders: Disentangling the effects of co-invading alien forbs on sandy old-fields"

I publish here the basic data matrices and the R code for the paper "Beyond single invaders: Disentangling the effects of co-invading alien forbs on sandy old-fields". The analysis is rather complicated, thus I preferred putting everything into a single R file. Please be aware of picking the right analysis with or without the focal alien species (Asclepias and Solidago). The raw trait matrix is used for computation, but the clean matrix is also provided. 'env.txt' contains the coordinates on EOV system.本文随文发布论文《超越单一入侵物种：解析共入侵外来草本对沙质弃耕地的影响》所使用的基础数据矩阵与R代码。鉴于本研究的分析过程较为复杂，故将全部内容整合至单个R代码文件中。请注意选取适配目标外来物种（马利筋属*Asclepias*与一枝黄花属*Solidago*）存在与否的分析方案。本研究以原始性状矩阵开展计算，同时亦提供了清洗后的性状矩阵。env.txt文件包含EOV系统下的坐标数据。