Exploratory Data Analysis


Author: John Wilder Tukey
Publisher: Pearson College Division
ISBN: N.A
Category: Mathematics
Page: 688
View: 3731

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Scratching down numbers (stem-and-leaf); Schematic summaries (pictures and numbers); Easy re-expression; Effective comparison (including well-chosen expresion); Plots of relationship; Straightening out plots (using three points); Smoothing sequences; Optional sections for chapter 7; Parallel and wandering schematic plots; Delineations of batches of points; Using two-way analyses; Making two-way analyses; Advances fits; Three-way fits; Looking in two or more ways at batches of points; Counted fractions; Better smoothing; Counts in bin after bin; Product-ratio plots; Shapes of distribution; Mathematical distributions; Postscript.

Exploratory Data Analysis


Author: Frederick Hartwig,Brian E. Dearing
Publisher: SAGE
ISBN: 9780803913707
Category: Mathematics
Page: 83
View: 5450

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An introduction to the underlying principles, central concepts, and basic techniques for conducting and understanding exploratory data analysis -- with numerous social science examples.

Statistik-Workshop für Programmierer


Author: Allen B. Downey
Publisher: O'Reilly Germany
ISBN: 3868993436
Category: Computers
Page: 160
View: 2932

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Wenn Sie programmieren können, beherrschen Sie bereits Techniken, um aus Daten Wissen zu extrahieren. Diese kompakte Einführung in die Statistik zeigt Ihnen, wie Sie rechnergestützt, anstatt auf mathematischem Weg Datenanalysen mit Python durchführen können. Praktischer Programmier-Workshop statt grauer Theorie: Das Buch führt Sie anhand eines durchgängigen Fallbeispiels durch eine vollständige Datenanalyse -- von der Datensammlung über die Berechnung statistischer Kennwerte und Identifikation von Mustern bis hin zum Testen statistischer Hypothesen. Gleichzeitig werden Sie mit statistischen Verteilungen, den Regeln der Wahrscheinlichkeitsrechnung, Visualisierungsmöglichkeiten und vielen anderen Arbeitstechniken und Konzepten vertraut gemacht. Statistik-Konzepte zum Ausprobieren: Entwickeln Sie über das Schreiben und Testen von Code ein Verständnis für die Grundlagen von Wahrscheinlichkeitsrechnung und Statistik: Überprüfen Sie das Verhalten statistischer Merkmale durch Zufallsexperimente, zum Beispiel indem Sie Stichproben aus unterschiedlichen Verteilungen ziehen. Nutzen Sie Simulationen, um Konzepte zu verstehen, die auf mathematischem Weg nur schwer zugänglich sind. Lernen Sie etwas über Themen, die in Einführungen üblicherweise nicht vermittelt werden, beispielsweise über die Bayessche Schätzung. Nutzen Sie Python zur Bereinigung und Aufbereitung von Rohdaten aus nahezu beliebigen Quellen. Beantworten Sie mit den Mitteln der Inferenzstatistik Fragestellungen zu realen Daten.

Statistik-Workshop für Programmierer


Author: Allen Downey
Publisher: O'Reilly Germany
ISBN: 3868993428
Category:
Page: 138
View: 3495

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Wenn Sie programmieren konnen, beherrschen Sie bereits Techniken, um aus Daten Wissen zu extrahieren. Diese kompakte Einfuhrung in die Statistik zeigt Ihnen, wie Sie rechnergestutzt, anstatt auf mathematischem Weg Datenanalysen mit Python durchfuhren konnen. Praktischer Programmier-Workshop statt grauer Theorie: Das Buch fuhrt Sie anhand eines durchgangigen Fallbeispiels durch eine vollstandige Datenanalyse -- von der Datensammlung uber die Berechnung statistischer Kennwerte und Identifikation von Mustern bis hin zum Testen statistischer Hypothesen. Gleichzeitig werden Sie mit statistischen Verteilungen, den Regeln der Wahrscheinlichkeitsrechnung, Visualisierungsmoglichkeiten und vielen anderen Arbeitstechniken und Konzepten vertraut gemacht. Statistik-Konzepte zum Ausprobieren: Entwickeln Sie uber das Schreiben und Testen von Code ein Verstandnis fur die Grundlagen von Wahrscheinlichkeitsrechnung und Statistik: Uberprufen Sie das Verhalten statistischer Merkmale durch Zufallsexperimente, zum Beispiel indem Sie Stichproben aus unterschiedlichen Verteilungen ziehen. Nutzen Sie Simulationen, um Konzepte zu verstehen, die auf mathematischem Weg nur schwer zuganglich sind. Lernen Sie etwas uber Themen, die in Einfuhrungen ublicherweise nicht vermittelt werden, beispielsweise uber die Bayessche Schatzung. Nutzen Sie Python zur Bereinigung und Aufbereitung von Rohdaten aus nahezu beliebigen Quellen. Beantworten Sie mit den Mitteln der Inferenzstatistik Fragestellungen zu realen Daten.

Exploratory Data Analysis: An Introduction to Data Analysis Using SAS


Author: Patricia Cerrito
Publisher: Lulu.com
ISBN: 1435705424
Category: Science
Page: 272
View: 6704

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This is an introductory text on how to investigate datasets. It is intended to be a practical text for those who need to research large datasets. Therefore, it does not follow the standard contents for more typical introductory statistics textbooks. When you complete the material, you will be able to work with your data using data visualization and regression in order to make sense of it, and to use your findings to make decisions. The book makes use of the statistical software, SAS, and its menu system SAS Enterprise Guide. This can be used as a stand alone text, or as a supplementary text to a more standard course. There are some datasets to accompany this text. ID# 1640751, Data for Exploratory Data Analysis.

Statistik-Workshop für Programmierer


Author: Allen B. Downey
Publisher: O'Reilly Media
ISBN: 3868998152
Category: Computers
Page: 160
View: 4024

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Wenn Sie programmieren können, beherrschen Sie bereits Techniken, um aus Daten Wissen zu extrahieren. Diese kompakte Einführung in die Statistik zeigt Ihnen, wie Sie rechnergestützt, anstatt auf mathematischem Weg Datenanalysen mit Python durchführen können. Praktischer Programmier-Workshop statt grauer Theorie: Das Buch führt Sie anhand eines durchgängigen Fallbeispiels durch eine vollständige Datenanalyse -- von der Datensammlung über die Berechnung statistischer Kennwerte und Identifikation von Mustern bis hin zum Testen statistischer Hypothesen. Gleichzeitig werden Sie mit statistischen Verteilungen, den Regeln der Wahrscheinlichkeitsrechnung, Visualisierungsmöglichkeiten und vielen anderen Arbeitstechniken und Konzepten vertraut gemacht. Statistik-Konzepte zum Ausprobieren: Entwickeln Sie über das Schreiben und Testen von Code ein Verständnis für die Grundlagen von Wahrscheinlichkeitsrechnung und Statistik: Überprüfen Sie das Verhalten statistischer Merkmale durch Zufallsexperimente, zum Beispiel indem Sie Stichproben aus unterschiedlichen Verteilungen ziehen. Nutzen Sie Simulationen, um Konzepte zu verstehen, die auf mathematischem Weg nur schwer zugänglich sind. Lernen Sie etwas über Themen, die in Einführungen üblicherweise nicht vermittelt werden, beispielsweise über die Bayessche Schätzung. Nutzen Sie Python zur Bereinigung und Aufbereitung von Rohdaten aus nahezu beliebigen Quellen. Beantworten Sie mit den Mitteln der Inferenzstatistik Fragestellungen zu realen Daten.

Exploratory Data Analysis with MATLAB, Third Edition


Author: Wendy L. Martinez,Angel R. Martinez,Jeffrey Solka
Publisher: CRC Press
ISBN: 1315349841
Category: Mathematics
Page: 590
View: 2111

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Praise for the Second Edition: "The authors present an intuitive and easy-to-read book. ... accompanied by many examples, proposed exercises, good references, and comprehensive appendices that initiate the reader unfamiliar with MATLAB." —Adolfo Alvarez Pinto, International Statistical Review "Practitioners of EDA who use MATLAB will want a copy of this book. ... The authors have done a great service by bringing together so many EDA routines, but their main accomplishment in this dynamic text is providing the understanding and tools to do EDA. —David A Huckaby, MAA Reviews Exploratory Data Analysis (EDA) is an important part of the data analysis process. The methods presented in this text are ones that should be in the toolkit of every data scientist. As computational sophistication has increased and data sets have grown in size and complexity, EDA has become an even more important process for visualizing and summarizing data before making assumptions to generate hypotheses and models. Exploratory Data Analysis with MATLAB, Third Edition presents EDA methods from a computational perspective and uses numerous examples and applications to show how the methods are used in practice. The authors use MATLAB code, pseudo-code, and algorithm descriptions to illustrate the concepts. The MATLAB code for examples, data sets, and the EDA Toolbox are available for download on the book’s website. New to the Third Edition Random projections and estimating local intrinsic dimensionality Deep learning autoencoders and stochastic neighbor embedding Minimum spanning tree and additional cluster validity indices Kernel density estimation Plots for visualizing data distributions, such as beanplots and violin plots A chapter on visualizing categorical data

Graphical Exploratory Data Analysis


Author: S. H. C. DuToit,A. G. W. Steyn,R. H. Stumpf
Publisher: Springer Science & Business Media
ISBN: 1461249503
Category: Mathematics
Page: 314
View: 1242

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Portraying data graphically certainly contributes toward a clearer and more penetrative understanding of data and also makes sophisticated statistical data analyses more marketable. This realization has emerged from many years of experience in teaching students, in research, and especially from engaging in statistical consulting work in a variety of subject fields. Consequently, we were somewhat surprised to discover that a comprehen sive, yet simple presentation of graphical exploratory techniques for the data analyst was not available. Generally books on the subject were either too incomplete, stopping at a histogram or pie chart, or were too technical and specialized and not linked to readily available computer programs. Many of these graphical techniques have furthermore only recently appeared in statis tical journals and are thus not easily accessible to the statistically unsophis ticated data analyst. This book, therefore, attempts to give a sound overview of most of the well-known and widely used methods of analyzing and portraying data graph ically. Throughout the book the emphasis is on exploratory techniques. Real izing the futility of presenting these methods without the necessary computer programs to actually perform them, we endeavored to provide working com puter programs in almost every case. Graphic representations are illustrated throughout by making use of real-life data. Two such data sets are frequently used throughout the text. In realizing the aims set out above we avoided intricate theoretical derivations and explanations but we nevertheless are convinced that this book will be of inestimable value even to a trained statistician.

Multivariate Exploratory Data Analysis

A Perspective on Exploratory Factor Analysis
Author: Allen Yates
Publisher: SUNY Press
ISBN: 1438424566
Category: Business & Economics
Page: N.A
View: 747

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In an exciting return to the roots of factor analysis, Allen Yates reviews its early history to clarify original objectives created by its discoverers and early developers. He then shows how computers can be used to accomplish the goals established by these early visionaries, while taking into account modern developments in the field of statistics that legitimize exploratory data analysis as a technique of discovery. The book presents a unique perspective on all phases of exploratory factor analysis. In doing so, the popular objectives of the method are literally turned upside down both at the stage where the model is being fitted to data and in the subsequent stage of simple structure transformation for meaningful interpretation. What results is a fully integrated approach to exploratory analysis of associations among observed variables, revealing underlying structure in a totally new and much more invariant manner than ever before possible.

Making Sense of Data I

A Practical Guide to Exploratory Data Analysis and Data Mining
Author: Glenn J. Myatt,Wayne P. Johnson
Publisher: John Wiley & Sons
ISBN: 1118422104
Category: Mathematics
Page: 248
View: 8616

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Praise for the First Edition “...a well-written book on data analysis anddata mining that provides an excellent foundation...” —CHOICE “This is a must-read book for learning practicalstatistics and data analysis...” —Computing Reviews.com A proven go-to guide for data analysis, Making Sense of DataI: A Practical Guide to Exploratory Data Analysis and Data Mining,Second Edition focuses on basic data analysis approaches thatare necessary to make timely and accurate decisions in a diverserange of projects. Based on the authors’ practical experiencein implementing data analysis and data mining, the new editionprovides clear explanations that guide readers from almost everyfield of study. In order to facilitate the needed steps when handling a dataanalysis or data mining project, a step-by-step approach aidsprofessionals in carefully analyzing data and implementing results,leading to the development of smarter business decisions. The toolsto summarize and interpret data in order to master data analysisare integrated throughout, and the Second Edition alsofeatures: Updated exercises for both manual and computer-aidedimplementation with accompanying worked examples New appendices with coverage on the freely availableTraceis™ software, including tutorials using data from avariety of disciplines such as the social sciences, engineering,and finance New topical coverage on multiple linear regression and logisticregression to provide a range of widely used and transparentapproaches Additional real-world examples of data preparation to establisha practical background for making decisions from data Making Sense of Data I: A Practical Guide to Exploratory DataAnalysis and Data Mining, Second Edition is an excellentreference for researchers and professionals who need to achieveeffective decision making from data. The Second Edition isalso an ideal textbook for undergraduate and graduate-level coursesin data analysis and data mining and is appropriate forcross-disciplinary courses found within computer science andengineering departments.

Think Stats


Author: Allen B. Downey
Publisher: "O'Reilly Media, Inc."
ISBN: 1491907371
Category: Computers
Page: 226
View: 4153

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If you know how to program, you have the skills to turn data into knowledge, using tools of probability and statistics. This concise introduction shows you how to perform statistical analysis computationally, rather than mathematically, with programs written in Python. By working with a single case study throughout this thoroughly revised book, you’ll learn the entire process of exploratory data analysis—from collecting data and generating statistics to identifying patterns and testing hypotheses. You’ll explore distributions, rules of probability, visualization, and many other tools and concepts. New chapters on regression, time series analysis, survival analysis, and analytic methods will enrich your discoveries. Develop an understanding of probability and statistics by writing and testing code Run experiments to test statistical behavior, such as generating samples from several distributions Use simulations to understand concepts that are hard to grasp mathematically Import data from most sources with Python, rather than rely on data that’s cleaned and formatted for statistics tools Use statistical inference to answer questions about real-world data

Exploratory Data Analysis Using Fisher Information


Author: Roy Frieden,Robert A. Gatenby
Publisher: Springer Science & Business Media
ISBN: 9781846287770
Category: Computers
Page: 363
View: 1604

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This book uses a mathematical approach to deriving the laws of science and technology, based upon the concept of Fisher information. The approach that follows from these ideas is called the principle of Extreme Physical Information (EPI). The authors show how to use EPI to determine the theoretical input/output laws of unknown systems. Will benefit readers whose math skill is at the level of an undergraduate science or engineering degree.

Exploratory Data Analysis in Business and Economics

An Introduction Using SPSS, Stata, and Excel
Author: Thomas Cleff
Publisher: Springer Science & Business Media
ISBN: 3319015176
Category: Business & Economics
Page: 215
View: 1303

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In a world in which we are constantly surrounded by data, figures, and statistics, it is imperative to understand and to be able to use quantitative methods. Statistical models and methods are among the most important tools in economic analysis, decision-making and business planning. This textbook, “Exploratory Data Analysis in Business and Economics”, aims to familiarise students of economics and business as well as practitioners in firms with the basic principles, techniques, and applications of descriptive statistics and data analysis. Drawing on practical examples from business settings, it demonstrates the basic descriptive methods of univariate and bivariate analysis. The textbook covers a range of subject matter, from data collection and scaling to the presentation and univariate analysis of quantitative data, and also includes analytic procedures for assessing bivariate relationships. It does not confine itself to presenting descriptive statistics, but also addresses the use of computer programmes such as Excel, SPSS, and STATA, thus treating all of the topics typically covered in a university course on descriptive statistics. The German edition of this textbook is one of the “bestsellers” on the German market for literature in statistics.

Exploratory Data Analysis Using R


Author: Ronald K. Pearson
Publisher: CRC Press
ISBN: 0429847041
Category: Business & Economics
Page: 548
View: 2360

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Exploratory Data Analysis Using R provides a classroom-tested introduction to exploratory data analysis (EDA) and introduces the range of "interesting" – good, bad, and ugly – features that can be found in data, and why it is important to find them. It also introduces the mechanics of using R to explore and explain data. The book begins with a detailed overview of data, exploratory analysis, and R, as well as graphics in R. It then explores working with external data, linear regression models, and crafting data stories. The second part of the book focuses on developing R programs, including good programming practices and examples, working with text data, and general predictive models. The book ends with a chapter on "keeping it all together" that includes managing the R installation, managing files, documenting, and an introduction to reproducible computing. The book is designed for both advanced undergraduate, entry-level graduate students, and working professionals with little to no prior exposure to data analysis, modeling, statistics, or programming. it keeps the treatment relatively non-mathematical, even though data analysis is an inherently mathematical subject. Exercises are included at the end of most chapters, and an instructor's solution manual is available. About the Author: Ronald K. Pearson holds the position of Senior Data Scientist with GeoVera, a property insurance company in Fairfield, California, and he has previously held similar positions in a variety of application areas, including software development, drug safety data analysis, and the analysis of industrial process data. He holds a PhD in Electrical Engineering and Computer Science from the Massachusetts Institute of Technology and has published conference and journal papers on topics ranging from nonlinear dynamic model structure selection to the problems of disguised missing data in predictive modeling. Dr. Pearson has authored or co-authored books including Exploring Data in Engineering, the Sciences, and Medicine (Oxford University Press, 2011) and Nonlinear Digital Filtering with Python. He is also the developer of the DataCamp course on base R graphics and is an author of the datarobot and GoodmanKruskal R packages available from CRAN (the Comprehensive R Archive Network).

Exploratory Data Analysis

A Primer for Undergraduates
Author: E. Waltenburg,William Mclauchlan,S. L. Wiest
Publisher: N.A
ISBN: 9781465200600
Category: Mathematics
Page: 120
View: 6813

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eBook Version You will receive access to this electronic text via email after using the shopping cart above to complete your purchase.

Non-Standard Parameter Adaptation for Exploratory Data Analysis


Author: Wesam Ashour Barbakh,Ying Wu,Colin Fyfe
Publisher: Springer
ISBN: 3642040055
Category: Computers
Page: 223
View: 1149

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Exploratory data analysis, also known as data mining or knowledge discovery from databases, is typically based on the optimisation of a specific function of a dataset. Such optimisation is often performed with gradient descent or variations thereof. In this book, we first lay the groundwork by reviewing some standard clustering algorithms and projection algorithms before presenting various non-standard criteria for clustering. The family of algorithms developed are shown to perform better than the standard clustering algorithms on a variety of datasets. We then consider extensions of the basic mappings which maintain some topology of the original data space. Finally we show how reinforcement learning can be used as a clustering mechanism before turning to projection methods. We show that several varieties of reinforcement learning may also be used to define optimal projections for example for principal component analysis, exploratory projection pursuit and canonical correlation analysis. The new method of cross entropy adaptation is then introduced and used as a means of optimising projections. Finally an artificial immune system is used to create optimal projections and combinations of these three methods are shown to outperform the individual methods of optimisation.

Age, Time, and Fertility

Applications of Exploratory Data Analysis
Author: Mary B. Breckenridge
Publisher: Elsevier
ISBN: 1483264769
Category: Social Science
Page: 348
View: 4630

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Age, Time, and Fertility: Applications of Exploratory Data Analysis describes change in the age pattern of fertility that responds to a specific need in making fertility comparisons across time and place. This book discusses a modeling process based on Tukey's exploratory data analysis (EDA) methods, which is proved very effective in other fields for detecting underlying patterns, even in flawed data. The first part of this text provides an introduction to the philosophy and tools of EDA and to the data analyzed, examining in detail the process of developing and standardizing the closely fitting, few-parameter descriptions of demographic change in time sequence. The rest of the chapters examine the results and applications of fertility modeling and establish relations between change in the age pattern of fertility and level of fertility. This publication is intended for those interested in the measures and methods of fertility change that can be applied to demographic data.

Exploratory Data Analysis in Empirical Research

Proceedings of the 25th Annual Conference of the Gesellschaft für Klassifikation e.V., University of Munich, March 14–16, 2001
Author: Manfred Schwaiger,Otto Opitz
Publisher: Springer Science & Business Media
ISBN: 364255721X
Category: Computers
Page: 536
View: 6532

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This volume presents a selection of new methods and approaches in the field of Exploratory Data Analysis. The reader will find numerous ideas and examples for cross disciplinary applications of classification and data analysis methods in fields such as data and web mining, medicine and biological sciences as well as marketing, finance and management sciences.