高效R语言编程 这本实践经验指南将教你如何编写高效R代码,使用性能分析、标准技巧和其他方法优化你的代码,提高计算机效率和编程效率。是初学和老手的高效编程书籍。
有许多优秀的关于可视化、数据科学和包开发方面的R资源。有成百上千零散的简介、网页和论坛讲解如何在特定的领域中使用R。直到现在,很少有人编写关于如何简单地使R更高效地工作方面的内容。这本实践经验的指南将教初学者和经验丰富的R使用者如何编写高效的R代码。 借助多年教授R课程的经验,本书作者提供了从优化安装RStudio到借助C 的优势的广泛范围的实践建议,这使得本书成为任何R使用者书架的有益补充。广泛背景的学者、商业用户和程序员都将受益于本书的指导。
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【预订】Pragmatism and Methodology 9781009013789 国外库房发货,通常付款后3-5周到货!
Product Details 基本信息 ISBN-13 书号 9781009013789 Author 作者 Alex Gillespie Format 版本 平装-胶订 Pages Number 页数 239页 Publisher 出版社 Cambridge University Press Publication Date 出版日期 2024-02-01 Product Dimensions 商品尺寸 229x152mm Language 语种 其它(含多语) Book Contents 内容简介 Taking a pragmatist approach to methods and methodology that fosters meaningful, impactful, and ethical research, this book rises to the challenge of today’s data revolution. It shows how pragmatism can turn challenges, such as the abundance and accumulation of big qualitative data, into opportunities. The authors summarize the pragmatist approach to different aspects of research, from epistemology, theory, and questions to ethics, as well as data collection and analysis. The chapters outline and document a new type of mixed methods design called ’multi-resolution research,” which serves to o
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牛津学科英语基础丛书 牛津图解中学商务(英汉双语) [英]盖俐斯皮(Gi【正版】 【店主推荐,正版书放心购买,可开发票】
采用英汉双语编排,既有助于读者系统把握中学阶段各学科的基础知识,又学会相关学科知识的规范英语表达。用图解来诠释学科要点,也是本丛书很人性化的艺术表现手法。不仅对准备出国留学的中学生或打算参加GCSE考试的学生是一套理想的读本,对有条件的中学开设学科双语教学以及师范院校相关专业学生提高学科英语表达能力,无疑也有较大的参考价值。
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车辆动力学基础 (美)格里斯比(Gillespie,T.D.) 著,赵六奇,金达锋 译 清华大学出版社 【热销推荐,正版现货,全国三仓就近发货,物流快捷,欢迎选购!】
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【中商原版】88 Word Sort Patterns 88字排序模式
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海外直订Cows I Have Known: (younger Readers Version) 我认识的奶牛:(年轻读
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海外直订My Friend Breath: Change Your Breath. Change Your Emotio
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海外直订Fundamentals of Vehicle Dynamics, Revised Edition 车辆动力学基
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海外直订Confessions of an Adult Orphan 《成年孤儿自白
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海外直订Climate Change in the South Pacific: Impacts and Respons
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海外直订Simple Brownian Diffusion 简单布朗扩散
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Product Details 基本信息 ISBN-13 书号 9780190609078 Author 作者 C. Gillespie Format 版本 精装 Pages Number 页数 216页 Publisher 出版社 Oxford University Press Publication Date 出版日期 2018-03-22 Language 语种 英语 Book Contents 内容简介 Boudica introduces readers to the life and literary importance of Boudica through juxtaposing her literary characterizations in Tacitus and Cassius Dio with those of other women and rebel leaders. Literary comparisons assist in the understanding of Boudica as a barbarian, queen, mother, commander in war, and leader of revolt.
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海外直订Argument of a Priori for the Being and the Attributes 存在
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海外直订The Cow with Ear Tag #1389 有耳标的奶牛1389
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全球营销 (美)凯特·吉莱斯皮(Kate Gillespie),(英)大卫·亨尼西(HDavid Hennessey) 全国多仓发货,物流便捷,正版保证,欢迎选购!
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海外直订The Early American Daguerreotype: Cross-Currents in Art
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【预订】A Treatise on Land-Surveying: Comprising the Theory Deve 美国库房发货,通常付款后3-5周到货!
Product Details 基本信息 ISBN-13 书号 9781425558956 Author 作者 Gillespie, W. M. (William Mitchell)(作者) Format 版本 平装-胶订 Pages Number 页数 532页 Publisher 出版社 University of Michigan Library Publication Date 出版日期 2006-09-13 Product Dimensions 商品尺寸 9.2 x 6.1 x 1 cm Shipping Weight 商品重量 1620g Language 语种 英语
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【预订】Treatise on Land Surveying: Comprising the Theory Develo 美国库房发货,通常付款后3-5周到货!
Product Details 基本信息 ISBN-13 书号 9781458501257 Author 作者 Gillespie, W.(作者) Format 版本 平装-胶订 Pages Number 页数 436页 Publisher 出版社 University of Michigan Libraries Publication Date 出版日期 2012-03-08 Product Dimensions 商品尺寸 9 x 6 x 0.9 cm Shipping Weight 商品重量 1400g Language 语种 英语
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【预售 按需印刷】Becoming Other 北京发货,付款后10天内发货
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【中商原版】Essential Elements for Strings Book 1 with Eei: Cello
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【预售 按需印刷】The Mind-Brain Matrix
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按需印刷The Defenders 预订,预计下单后2-3周左右发货!
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See Inside Recycling and Rubbish 偷偷看之回收垃圾 英文原版 英文版 Frith, Al
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100 Steps for Science 改变人类的100个科学发现 9781847808059,原版进口图书
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Product Details 基本信息 ISBN-13 书号 9781501316883 Author 作者 Gillespie David Format 版本 精装 Pages Number 页数 304页 Publisher 出版社 Bloomsbury Academic Publication Date 出版日期 2024-01-25 Language 语种 其它(含多语)
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车辆动力学基础 「本店部分图书为稀缺古旧书籍,您下单之前可与在线客服联系」
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预订 按需印刷 Writing Center Research
There are writing centers at almost every college and university in the United States, and there is an emerging body of professional discourse, research, and writing about them. The goal of this book is to open, formalize, and further the dialogue about research in and about writing centers. The original essays in this volume, all written by writing center researchers, directly address current concerns in several ways: they encourage studies, data collection, and publication by offering detailed, reflective accounts of research; they encourage a diversity of approaches by demonstrating a range of methodologies (e.g., ethnography, longitudinal case study; rhetorical analysis, teacher research) available to both veteran and novice writing center professionals; they advance an ongoing conversation about writing center research by explicitly addressing epistemological and ethical issues. The book aims to encourage and guide other researchers, while at the same time offering new knowledge that has resulted
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英文原版 Population Genetics 群体遗传学简明指南 第二版 John H. Gillespie 英文版
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车辆动力学基础 [美]格里斯比(Gi 【正版书】 【店主推荐,正版书放心购买,可开发票】
《车辆动力学基础》是美国密歇根大学GillespieT.D教授的一部内容系统丰富,较全面的介绍车辆动力学发展、引用大量相关文献内容的SAE丛书,在美国一些大学汽车方向的研究生教学和对工程技术人员培训用它作为教材。本书全面介绍了车辆动力学的一些基本工程原理及汽车性能的分析方法,主要内容分为 引言、车辆的加速性能、刹车性能、空气动力学及滚动的耐久性、行驶、稳定状态的设计、车辆的翻转、驾驶系统、疲劳设计、悬挂系统。每章后均配有相应的例子与参考文献。希望此书的中译版对为我国汽车行业的工程技术人员和汽车专业的学生以及广大汽车爱好者提供一本贴近工程实际,基础性的参考书。
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【预订】Revival: The Mind in Daily Life (1933) 9781138553651 美国库房发货,通常付款后3-5周到货!
Product Details 基本信息 ISBN-13 书号 9781138553651 Author 作者 Gillespie Format 版本 精装 Pages Number 页数 312页 Publisher 出版社 Routledge Publication Date 出版日期 1800-01-01 Language 语种 英语
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按需印刷The Ancestors Within 预订,预计下单后3-6周左右发货!
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