R scripts and data files

The uploaded files on Figshare include the data and R scripts for data filtering, the GAM/qGAMs and Random Forest analyses, implemented in the manuscript Wagner et al. (2021) <b>Alien plant invasion hotspots and invasion debt in European woodlands.</b><br> Not included are the extraction and preparation of predictor and response variables (given that some variables had to be prepared in QGIS and ArcGIS), the R script for preparing Fig. 1 (map) and data summary tables (since these can be easily produced). These excluded files, however, can be requested from the first author ([e-mail]). <br> The data include only the most essential data from the European Vegetation Archive. To retrieve more information for plots, including species abundances, permission must be requested from the individual Custodians (for more information, contact [e-mail]).<br>Check the Readme.txt file for meta-data.

Figshare平台上传的文件包含Wagner等人2021年发表的题为《欧洲林地的外来植物入侵热点与入侵债务》的论文中所使用的数据、用于数据筛选的R脚本，以及广义加性模型（Generalized Additive Model, GAM）/分位数广义加性模型（quantile Generalized Additive Model, qGAM）和随机森林分析的相关代码。
本数据集未包含预测变量与响应变量的提取与预处理（部分变量需通过QGIS与ArcGIS完成制备）、用于绘制图1（地图）的R脚本，以及数据汇总表（此类文件可便捷自行生成）。
不过，上述未包含的文件可向第一作者（[e-mail]）申请获取。
本数据集仅包含欧洲植被档案（European Vegetation Archive）中的核心必要数据。若需获取样地的更多信息（包括物种多度数据），则需向各托管人申请权限，更多详情可联系[e-mail]。
元数据请查看Readme.txt文件。