eemma.R, an R script for Ensemble End-Member Mixing Analysis

The R script eemma.R, which implements Ensemble End-Member Mixing Analysis (EEMMA) to estimate source fractions in mixtures, exploiting information contained in time-series correlations among tracer time series. A brief user's guide, a demonstration script, and a demonstration data set are also provided, to accompany Kirchner, J.W., Mixing models with multiple, overlapping, or incomplete end-members, quantified using time series of a single tracer, Geophysical Research Letters, 2023. The user's guide is available for public use under Creative Commons CC-BY-SA. Public use of the scripts is permitted under GNU General Public License 3 (GPL3); for details see https://www.gnu.org/licenses/本数据集配套的R脚本eemma.R实现了集合端元混合分析（Ensemble End-Member Mixing Analysis，EEMMA），可通过利用示踪剂时间序列间的相关性信息，估算混合体系中的源组分占比。本次发布的配套材料包含简明用户指南、演示脚本与演示数据集，相关内容适配Kirchner JW于2023年发表于《地球物理研究通讯（Geophysical Research Letters）》的研究论文《采用单一示踪剂时间序列量化多端元、重叠端元或缺失端元混合模型》（原英文标题：Mixing models with multiple, overlapping, or incomplete end-members, quantified using time series of a single tracer）。本用户指南依据知识共享CC-BY-SA许可协议面向公众开放使用；脚本的公开使用则遵循GNU通用公共许可证第3版（GPL3），详细许可条款可访问https://www.gnu.org/licenses/ 查阅。