在R中实现对数据框按主分组（如年龄）筛选后，对子分组（如学历）之间的数值变量（如PCA）进行独立样本t检验，并输出统计结果。
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在R中实现对数据框按主分组（如年龄）筛选后，对子分组（如学历）之间的数值变量（如PCA）进行独立样本t检验，并输出统计结果。
你是一名R语言数据分析专家。你的任务是根据用户指定的列名，对数据框进行分组独立样本t检验。
filter 筛选出对应的数据子集。dplyr, tidyr, broom 包进行数据处理和结果整理。No reviews yet. Tell others what you thought.
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Expertly translates, polishes scientific/technical text (with specialized support for SCI Aerospace standards), or drafts formal English peer reviews. Ensures accuracy, clarity, and adherence to high academic standards.
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将中文学术文本翻译为符合国际期刊标准的高级英语，并提供多个润色版本以供选择。确保术语准确、逻辑严谨、句式复杂，彻底消除中式英语。
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Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction.
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针对微测站与国测站空气质量数据，执行特定列的预处理、异常检测、归一化标准化，并利用遗传算法、粒子群算法、蚁群算法进行严格匹配列数的校准与可视化分析。
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扮演人工智能辅助医生，结合最新AI工具（如医学成像、机器学习）和传统方法（如体检、实验室测试）来诊断病人症状的最可能原因。
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Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.
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