Sizes And Powers Of Tests For Models With Sample Selection Biases

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Sample Size Determination and Power

Author : Thomas P. Ryan
Publisher : John Wiley & Sons
ISBN 13 : 1118439228
Total Pages : 230 pages
Book Rating : 4.1/5 (184 download)

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Book Synopsis Sample Size Determination and Power by : Thomas P. Ryan

Download or read book Sample Size Determination and Power written by Thomas P. Ryan and published by John Wiley & Sons. This book was released on 2013-05-28 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive approach to sample size determination and power with applications for a variety of fields Sample Size Determination and Power features a modern introduction to the applicability of sample size determination and provides a variety of discussions on broad topics including epidemiology, microarrays, survival analysis and reliability, design of experiments, regression, and confidence intervals. The book distinctively merges applications from numerous fields such as statistics, biostatistics, the health sciences, and engineering in order to provide a complete introduction to the general statistical use of sample size determination. Advanced topics including multivariate analysis, clinical trials, and quality improvement are addressed, and in addition, the book provides considerable guidance on available software for sample size determination. Written by a well-known author who has extensively class-tested the material, Sample Size Determination and Power: Highlights the applicability of sample size determination and provides extensive literature coverage Presents a modern, general approach to relevant software to guide sample size determination including CATD (computer-aided trial design) Addresses the use of sample size determination in grant proposals and provides up-to-date references for grant investigators An appealing reference book for scientific researchers in a variety of fields, such as statistics, biostatistics, the health sciences, mathematics, ecology, and geology, who use sampling and estimation methods in their work, Sample Size Determination and Power is also an ideal supplementary text for upper-level undergraduate and graduate-level courses in statistical sampling.

Handbook of Structural Equation Modeling

Author : Rick H. Hoyle
Publisher : Guilford Publications
ISBN 13 : 1462544649
Total Pages : 801 pages
Book Rating : 4.4/5 (625 download)

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Book Synopsis Handbook of Structural Equation Modeling by : Rick H. Hoyle

Download or read book Handbook of Structural Equation Modeling written by Rick H. Hoyle and published by Guilford Publications. This book was released on 2023-02-17 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This accessible volume presents both the mechanics of structural equation modeling (SEM) and specific SEM strategies and applications. The editor, along with an international group of contributors, and editorial advisory board are leading methodologists who have organized the book to move from simpler material to more statistically complex modeling approaches. Sections cover the foundations of SEM; statistical underpinnings, from assumptions to model modifications; steps in implementation, from data preparation through writing the SEM report; and basic and advanced applications, including new and emerging topics in SEM. Each chapter provides conceptually oriented descriptions, fully explicated analyses, and engaging examples that reveal modeling possibilities for use with readers' data. Many of the chapters also include access to data and syntax files at the companion website, allowing readers to try their hands at reproducing the authors' results"--

Learning Statistics with R

Author : Daniel Navarro
Publisher : Lulu.com
ISBN 13 : 1326189727
Total Pages : 617 pages
Book Rating : 4.3/5 (261 download)

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Book Synopsis Learning Statistics with R by : Daniel Navarro

Download or read book Learning Statistics with R written by Daniel Navarro and published by Lulu.com. This book was released on 2013-01-13 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Learning Statistics with R" covers the contents of an introductory statistics class, as typically taught to undergraduate psychology students, focusing on the use of the R statistical software and adopting a light, conversational style throughout. The book discusses how to get started in R, and gives an introduction to data manipulation and writing scripts. From a statistical perspective, the book discusses descriptive statistics and graphing first, followed by chapters on probability theory, sampling and estimation, and null hypothesis testing. After introducing the theory, the book covers the analysis of contingency tables, t-tests, ANOVAs and regression. Bayesian statistics are covered at the end of the book. For more information (and the opportunity to check the book out before you buy!) visit http://ua.edu.au/ccs/teaching/lsr or http://learningstatisticswithr.com

Determining Sample Size

Author : Patrick Dattalo
Publisher : Oxford University Press
ISBN 13 : 0195315499
Total Pages : 176 pages
Book Rating : 4.1/5 (953 download)

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Book Synopsis Determining Sample Size by : Patrick Dattalo

Download or read book Determining Sample Size written by Patrick Dattalo and published by Oxford University Press. This book was released on 2008 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A researcher's decision about the sample to draw in a study may have an enormous impact on the results, and it rests on numerous statistical and practical considerations that can be difficult to juggle. Computer programs help, but no single software package exists that allows researchers to determine sample size across all statistical procedures. This pocket guide shows social work students, educators, and researchers how to prevent some of the mistakes that would result from a wrong sample size decision by describing and critiquing four main approaches to determining sample size. In concise, example-rich chapters, Dattalo covers sample-size determination using power analysis, confidence intervals, computer-intensive strategies, and ethical or cost considerations, as well as techniques for advanced and emerging statistical strategies such as structural equation modeling, multilevel analysis, repeated measures MANOVA and repeated measures ANOVA. He also offers strategies for mitigating pressures to increase sample size when doing so may not be feasible. Whether as an introduction to the process for students or as a refresher for experienced researchers, this practical guide is a perfect overview of a crucial but often overlooked step in empirical social work research.

A Guide to Sample Size for Animal-based Studies

Author : Penny S. Reynolds
Publisher : John Wiley & Sons
ISBN 13 : 111979997X
Total Pages : 294 pages
Book Rating : 4.1/5 (197 download)

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Book Synopsis A Guide to Sample Size for Animal-based Studies by : Penny S. Reynolds

Download or read book A Guide to Sample Size for Animal-based Studies written by Penny S. Reynolds and published by John Wiley & Sons. This book was released on 2023-12-11 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand a foundational area of experimental design with this innovative reference Animal-based research is an essential part of basic and preclinical research, but poses a unique set of experimental design challenges. The most important of these are the 3Rs Replacement, Reduction and Refinement the principles comprising the ethical framework for humane animal-based studies. However, many researchers have difficulty navigating the design trade-offs necessary to simultaneously minimize animal use, and produce scientific information that is both rigorous and reliable. A Guide to Sample Size for Animal-Based Studies meets this need with a thorough, accessible reference work to the subject. This book provides a straightforward systematic approach to "right-sizing" animal-based experiments, with sample size estimates based on the fundamentals of statistical thinking: structured research questions, variation control and appropriate design of experiments. The result is a much-needed guide to planning animal-based experiments to ensure scientifically valid and reliable results. This book offers: Step-by-step guidance in diverse methods for approximating and refining sample size Detailed treatment of research topics specific to animal-based research, including pilot, feasibility and proof-of-concept studies Sample size approximation methods for different types of data binary, continuous, ordinal, time to event and different study types description, comparison, nested designs, reference interval construction and dose-response studies Numerous worked examples, using real data from published papers, together with SAS and R code A Guide to Sample Size for Animal-Based Studies is a must-have reference for preclinical and veterinary researchers, as well as ethical oversight committees and policymakers.

Selection Bias and Covariate Imbalances in Randomized Clinical Trials

Author : Vance Berger
Publisher : John Wiley & Sons
ISBN 13 : 0470863633
Total Pages : 218 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Selection Bias and Covariate Imbalances in Randomized Clinical Trials by : Vance Berger

Download or read book Selection Bias and Covariate Imbalances in Randomized Clinical Trials written by Vance Berger and published by John Wiley & Sons. This book was released on 2007-10-22 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selection bias can, and does, occur, even in randomized clinical trials. Steps need to be taken in order to ensure that this does not compromise the integrity of clinical trials; hence “Selection Bias and Covariate Imbalances in Randomized Clinical Trials” offers a comprehensive treatment of the subject and the methodology involved. This book: Provides an overview of the hierarchy of study designs, and justifies the position of randomised trials at the top of this hierarchy. Discusses the strengths and defects of randomisation, and provides real evidence to justify concern regarding its defects. Outlays the damaging consequences that selection bias causes when it does occur. Considers courses of action that can be taken to manage/ contain the problem. Presents methods that can be used to detect selection bias in randomised trials, and methods to correct for selection bias. Concludes by providing a comprehensive plan for managing baseline imbalances and selection bias in randomised trials, and proposing open problems for future research. Illustrated with case studies, this book introduces groundbreaking ideas and research that will be invaluable to researchers and practitioners who design and analyse clinical trials. It will also be of interest to graduate students within the field of biostatistics.

Sensory Discrimination Tests and Measurements

Author : Jian Bi
Publisher : John Wiley & Sons
ISBN 13 : 0470276401
Total Pages : 313 pages
Book Rating : 4.4/5 (72 download)

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Book Synopsis Sensory Discrimination Tests and Measurements by : Jian Bi

Download or read book Sensory Discrimination Tests and Measurements written by Jian Bi and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensory discriminative analysis forms a fundamental type of methodology and is used widely in sensory and consumer research. Sensory Discrimination Tests and Measurements: Statistical Principles, Procedures and Tables provides a comprehensive discussion of sensory discriminative analysis from a statistical perspective. A wide variety of test and measurement methods, which were developed during the past decades and scattered in various statistical and non-statistical journals, are included in the book. The book gives a unified picture of the state of the subject and reflects some features of advanced sensory discriminative analysis. Designed to be both a reference manual and a research monograph, practitioners will discover various useful test and measurement procedures. More statistically-oriented readers will find the statistical considerations behind the procedures. Sensory Discrimination Tests and Measurements will be of interest to everyone concerned with testing and measuring sensory difference and consumer preference.

Research Methods in the Social Sciences

Author : Bridget Somekh
Publisher : SAGE
ISBN 13 : 9780761944027
Total Pages : 388 pages
Book Rating : 4.9/5 (44 download)

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Book Synopsis Research Methods in the Social Sciences by : Bridget Somekh

Download or read book Research Methods in the Social Sciences written by Bridget Somekh and published by SAGE. This book was released on 2005 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the contributors introduce all the key qualitative and quantitative research methodologies and methods and draw readers into a community of researchers engaged in reflection on the research process

Sweating the Small Stuff: Does data cleaning and testing of assumptions really matter in the 21st century?

Author :
Publisher : Frontiers E-books
ISBN 13 : 2889191559
Total Pages : 158 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Sweating the Small Stuff: Does data cleaning and testing of assumptions really matter in the 21st century? by :

Download or read book Sweating the Small Stuff: Does data cleaning and testing of assumptions really matter in the 21st century? written by and published by Frontiers E-books. This book was released on with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Intervention Research in Educational Practice

Author : Hermann Astleitner
Publisher : Waxmann Verlag
ISBN 13 : 3830991975
Total Pages : 187 pages
Book Rating : 4.8/5 (39 download)

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Book Synopsis Intervention Research in Educational Practice by : Hermann Astleitner

Download or read book Intervention Research in Educational Practice written by Hermann Astleitner and published by Waxmann Verlag. This book was released on 2020 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving learning and teaching at schools or universities may start with choosing evidence-based interventions and practices, but does not end there. To ensure sustainable changes to programs in educational practice, interventions need to address complex issues related to theories, research designs, and measurements. This book presents typical but often overlooked problems in intervention research in educational practice. These problems are embedded in various educational areas such as, amongst others, school effectiveness, instructional design or motivational aspects of teacher trainings.

Social Work Practice

Author : Eileen D. Gambrill
Publisher : Oxford University Press, USA
ISBN 13 : 0195173422
Total Pages : 858 pages
Book Rating : 4.1/5 (951 download)

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Book Synopsis Social Work Practice by : Eileen D. Gambrill

Download or read book Social Work Practice written by Eileen D. Gambrill and published by Oxford University Press, USA. This book was released on 2006-02-23 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I. Getting Oriented1. Social work: An introduction2. Clients and services3. Values, ethics, and obligationsPart II. Thinking about knowledge and how to get it4. Different views of knowledge5. Critical thinking: Values, knowledge, and skillsPart III. Thinking about problems and causes6. Competing views of problems and causes7. Taking advantage of research findings about behavior and how it is influenced by the environmentPart IV. A problem-solving practice model8. Problem solving and decision making: Integral to helping clients9. Evidence-based practice: A problem-solving process and philosophy10. Posing questions and searching for answers11. A bare-bones guide to critically appraising practice-related researchPart V. Getting started12. Contextual assessment13. Beginning: A procedural guide14. Engaging clientsPart VI. Relationship skills15. Interpersonal helping skills16. Handling challenging social situationsPart VII. Gathering and organizing information17. Where to look: Deciding how to gather needed information18. Observation: Learning to see19. Reviewing resources and obstacles20. Putting it all togetherPart VIII. Selecting plans and assessing progress21. Selecting and Implementing service plans22. Evaluating outcomes as integral to problem solving23. Planning for endingsPart IX. Intervention options24. Education and skill building25. Helping clients learn positive behavior change skills26. Working with groups and families27. Working with organizations and communitiesPart X. The long run28. Maintaining skills and staying happy in your workReferences Index.

Research Methods in Sports Coaching

Author : Lee Nelson
Publisher : Routledge
ISBN 13 : 1135093032
Total Pages : 286 pages
Book Rating : 4.1/5 (35 download)

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Book Synopsis Research Methods in Sports Coaching by : Lee Nelson

Download or read book Research Methods in Sports Coaching written by Lee Nelson and published by Routledge. This book was released on 2014-03-26 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Methods in Sports Coaching is a key resource for any student, researcher or practitioner wishing to undertake research into sports coaching. It takes the reader through each phase of the research process, from identifying valuable research questions, to data collection and analyses, to the presentation and dissemination of research findings. It is the only book to focus on the particular challenges and techniques of sports coaching research, with each chapter including examples, cases and scenarios from the real world of sports coaching. The book introduces and explores important philosophical, theoretical and practical considerations in conducting coaching research, including contextual discussions about why it’s important to do sports coaching research, how to judge the quality of coaching research, and how sports coaching research might meet the needs of coaching practitioners. Written by a team of leading international scholars and researchers from the UK, US, Canada and Australia, and bridging the gap between theory and practice, this book is an essential course text for any research methods course taken as part of a degree programme in sports coaching or coach education.

Designing Experiments and Analyzing Data

Author : Scott E. Maxwell
Publisher : Routledge
ISBN 13 : 1135653461
Total Pages : 1106 pages
Book Rating : 4.1/5 (356 download)

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Book Synopsis Designing Experiments and Analyzing Data by : Scott E. Maxwell

Download or read book Designing Experiments and Analyzing Data written by Scott E. Maxwell and published by Routledge. This book was released on 2003-10-17 with total page 1106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through this book's unique model comparison approach, students and researchers are introduced to a set of fundamental principles for analyzing data. After seeing how these principles can be applied in simple designs, students are shown how these same principles also apply in more complicated designs. Drs. Maxwell and Delaney believe that the model comparison approach better prepares students to understand the logic behind a general strategy of data analysis appropriate for various designs; and builds a stronger foundation, which allows for the introduction of more complex topics omitted from other books. Several learning tools further strengthen the reader's understanding: *flowcharts assist in choosing the most appropriate technique; *an equation cross-referencing system aids in locating the initial, detailed definition and numerous summary equation tables assist readers in understanding differences between different methods for analyzing their data; *examples based on actual research in a variety of behavioral sciences help students see the applications of the material; *numerous exercises help develop a deeper understanding of the subject. Detailed solutions are provided for some of the exercises and *realistic data sets allow the reader to see an analysis of data from each design in its entirety. Updated throughout, the second edition features: *significantly increased attention to measures of effects, including confidence intervals, strength of association, and effect size estimation for complex and simple designs; *an increased use of statistical packages and the graphical presentation of data; *new chapters (15 & 16) on multilevel models; *the current controversies regarding statistical reasoning, such as the latest debates on hypothesis testing (ch. 2); *a new preview of the experimental designs covered in the book (ch. 2); *a CD with SPSS and SAS data sets for many of the text exercises, as well as tutorials reviewing basic statistics and regression; and *a Web site containing examples of SPSS and SAS syntax for analyzing many of the text exercises. Appropriate for advanced courses on experimental design or analysis, applied statistics, or analysis of variance taught in departments of psychology, education, statistics, business, and other social sciences, the book is also ideal for practicing researchers in these disciplines. A prerequisite of undergraduate statistics is assumed. An Instructor's Solutions Manual is available to those who adopt the book for classroom use.

The Wildlife Techniques Manual

Author : Nova J. Silvy
Publisher : Johns Hopkins University Press
ISBN 13 : 1421436698
Total Pages : 1401 pages
Book Rating : 4.4/5 (214 download)

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Book Synopsis The Wildlife Techniques Manual by : Nova J. Silvy

Download or read book The Wildlife Techniques Manual written by Nova J. Silvy and published by Johns Hopkins University Press. This book was released on 2020-07-28 with total page 1401 pages. Available in PDF, EPUB and Kindle. Book excerpt: The #1 selling wildlife management book for 40 years, now updated for the next generation of professionals and students. Since its original publication in 1960, The Wildlife Techniques Manual has remained the cornerstone text for the professional wildlife biologist. Now fully revised and updated, this eighth edition promises to be the most comprehensive resource on wildlife biology, conservation, and management for years to come. Superbly edited by Nova J. Silvy and published in association with The Wildlife Society, the 50 authoritative chapters included in this work provide a full synthesis of methods used in the field and laboratory. Chapter authors, all leading wildlife professionals, explain and critique traditional and new methodologies and offer thorough discussions of a wide range of relevant topics. To effectively incorporate the explosion of new information in the wildlife profession, this latest edition is logically organized into a 2-volume set: Volume 1 is devoted to research techniques and Volume 2 focuses on pragmatic management methodologies. Volume 1 describes research design and proper analytic methods prior to conducting research, as well as methods and considerations for capturing and handling wild animals and information on identification and marking of captured animals. It also includes new chapters on nutritional research and field sign identification, and on emerging topics, including structured decision-making. Finally, Volume 1 addresses measurements of wildlife abundance and habitat and research on individual animals. Volume 2 begins with a section on the relationship between research and management including public outreach, described in a context that encourages engagement prior to initiation of management. An adaptive management approach is described as a cornerstone of natural resource management, followed by a section on managing landscapes and wildlife populations. The volume also includes new chapters on ethics in wildlife science and conservation, conflict resolution and management, and land reclamation. A standard text in a variety of courses, the Techniques Manual, as it is commonly called, covers every aspect of modern wildlife management and provides practical information for applying the hundreds of methods described in its pages. This deft and thorough update ensures that The Wildlife Techniques Manual will remain an indispensable resource, one that professionals and students in wildlife biology, conservation, and management simply cannot do without.

Cumulated Index Medicus

Author :
Publisher :
ISBN 13 :
Total Pages : 1392 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Cumulated Index Medicus by :

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1993 with total page 1392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Model Selection and Multimodel Inference

Author : Kenneth P. Burnham
Publisher : Springer Science & Business Media
ISBN 13 : 0387224564
Total Pages : 512 pages
Book Rating : 4.3/5 (872 download)

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Book Synopsis Model Selection and Multimodel Inference by : Kenneth P. Burnham

Download or read book Model Selection and Multimodel Inference written by Kenneth P. Burnham and published by Springer Science & Business Media. This book was released on 2007-05-28 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique and comprehensive text on the philosophy of model-based data analysis and strategy for the analysis of empirical data. The book introduces information theoretic approaches and focuses critical attention on a priori modeling and the selection of a good approximating model that best represents the inference supported by the data. It contains several new approaches to estimating model selection uncertainty and incorporating selection uncertainty into estimates of precision. An array of examples is given to illustrate various technical issues. The text has been written for biologists and statisticians using models for making inferences from empirical data.

Machine Learning with Qlik Sense

Author : Hannu Ranta
Publisher : Packt Publishing Ltd
ISBN 13 : 1805121499
Total Pages : 242 pages
Book Rating : 4.8/5 (51 download)

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Book Synopsis Machine Learning with Qlik Sense by : Hannu Ranta

Download or read book Machine Learning with Qlik Sense written by Hannu Ranta and published by Packt Publishing Ltd. This book was released on 2023-10-27 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the art of machine learning by using the one-of-a-kind Qlik platform, and take your data analytics skills to the next level Key Features Gain a solid understanding of machine learning concepts and learn to effectively define a problem Explore the application of machine learning principles within the Qlik platform Apply your knowledge of ML to real-world scenarios with the help of practical examples Purchase of the print or Kindle book includes a free PDF eBook Book DescriptionThe ability to forecast future trends through data prediction, coupled with the integration of ML and AI, has become indispensable to global enterprises. Qlik, with its extensive machine learning capabilities, stands out as a leading analytics platform enabling businesses to achieve exhaustive comprehension of their data. This book helps you maximize these capabilities by using hands-on illustrations to improve your ability to make data-driven decisions. You’ll begin by cultivating an understanding of machine learning concepts and algorithms, and build a foundation that paves the way for subsequent chapters. The book then helps you navigate through the process of framing machine learning challenges and validating model performance. Through the lens of Qlik Sense, you'll explore data preprocessing and analysis techniques, as well as find out how to translate these techniques into pragmatic machine learning solutions. The concluding chapters will help you get to grips with advanced data visualization methods to facilitate a clearer presentation of findings, complemented by an array of real-world instances to bolster your skillset. By the end of this book, you’ll have mastered the art of machine learning using Qlik tools and be able to take your data analytics journey to new heights.What you will learn Find out how to build practical machine learning solutions with the Qlik platform Develop the skills needed to generate and verify machine learning models using the Qlik platform Discover techniques used for preparing and investigating data to craft machine learning solutions Understand how to transform real-world business problems into machine learning models Expand your potential to new use cases with data analytics Explore advanced visualization techniques to make your models come alive Who this book is forIf you’re interested in data and analytics and are looking to extend your skillset to machine learning, this book is for you. Basic working knowledge of data, preferably with Qlik tools, will help you get started with this book. This is an excellent guide for anyone who wants to start using machine learning as part of their data analytics journey.