R markdown graphing and analyzing OA and light effects

This R markdown has the code used to analyze seawater chemistry, generate normalized response variables, perform principal component analyses, run mixed effect models, and generate figures.本R Markdown文档包含用于海水化学分析、生成标准化响应变量、开展主成分分析（Principal Component Analysis）、运行混合效应模型（Mixed Effect Models）以及生成图表的代码。