Analiza danych
Supercharge Excel. Learn How to Write DAX for Power Pivot
MrExcel's Holy Macro! Books, Matt Allington
This guide empowers you to master Excel and Data Analysis Expressions (DAX), guiding you from the basics of data modeling to advanced DAX functions. You'll begin by learning how to load and structure data effectively, then dive into essential DAX functions like SUM, COUNT, and FILTER, which are crucial for accurate data manipulation. As you progress, the book covers advanced concepts such as context transition, calculated columns, and time intelligence, enabling you to perform sophisticated data analyses.By incorporating hands-on exercises, the guide ensures that you can apply what you've learned to real-world scenarios. You'll also explore advanced topics like disconnected tables and cube formulas, expanding your ability to create dynamic models and dashboards. Towards the end, the guide introduces transitioning from Excel to Power BI, helping you leverage your Excel expertise in a more powerful environment.This book is perfect for technical professionals and Excel power users looking to enhance their data analysis skills and transition smoothly to Power BI. By the end, you'll have the knowledge and tools to take your data modeling and analysis to the next level.
Szeregi czasowe. Praktyczna analiza i predykcja z wykorzystaniem statystyki i uczenia maszynowego
Aileen Nielsen
Analiza szeregów czasowych zyskuje na znaczeniu. Wraz z postępującą digitalizacją danych służby zdrowia, rozwojem inteligentnych miast czy upowszechniającym się internetem rzeczy staje się coraz bardziej potrzebna. Obiecującym rozwiązaniem jest analiza szeregów czasowych metodami wspomaganymi uczeniem maszynowym. Techniki te umożliwiają skuteczne monitorowanie i wykorzystywanie coraz większych zbiorów danych. Być może ich zastosowanie do pracy z szeregami czasowymi wydaje się nieoczywiste, jednak bez analiz szeregów czasowych nie można w pełni wykorzystać zebranych danych. Ta książka jest szerokim, aktualnym i praktycznym przeglądem metod analizy szeregów czasowych, w którym ujęto pełny potok przetwarzania danych czasowych i modelowania. Zaprezentowano w niej rzeczywiste przypadki użycia tych metod i zilustrowano je obszernymi fragmentami znakomicie zaprojektowanego kodu w językach R i Python. Znalazły się tutaj praktyczne wskazówki ułatwiające rozwiązywanie najczęstszych problemów występujących w inżynierii danych czasowych i ich analizie. Ujęto tu zarówno konwencjonalne metody statystyczne, jak i nowoczesne techniki uczenia maszynowego. To bardzo przydatny przewodnik, dzięki któremu analitycy danych, inżynierowie oprogramowania i naukowcy będą mogli płynnie przejść od podstaw pracy z szeregami czasowymi do rozwiązywania konkretnych zagadnień na profesjonalnym poziomie. Dzięki tej książce nauczysz się: pozyskiwać, przechowywać i przetwarzać szeregi czasowe eksplorować dane czasowe i symulować je wykonywać pomiary błędów pracować z szeregami czasowymi za pomocą uczenia maszynowego lub uczenia głębokiego oceniać dokładność i wydajność modeli Skutecznie analizuj szeregi czasowe i wydobywaj bezcenną wiedzę!
Tableau 10 Business Intelligence Cookbook. Create powerful, effective visualizations with Tableau 10
Donabel Santos, Paul Banoub
Tableau is a software tool that can speed up data analysis through its rich visualization capabilities, and help uncover insights for better and smarter decision making. This book is for the business, technology, data and analytics professionals who use and analyze data and data-driven approaches to support business operations and strategic initiatives in their organizations.This book provides easy-to-follow recipes to get the reader up and running with Tableau 10, and covers basic to advanced use cases and scenarios. The book starts with building basic charts in Tableau and moves on to building more complex charts by incorporating different Tableau features and interactivity components. There is an entire chapter dedicated to dashboard techniques and best practices. A number of recipes specifically for geospatial visualization, analytics, and data preparation are also covered.By the end of this book, you’ll have gained confidence and competence to analyze and communicate data and insights more efficiently and effectively by creating compelling interactive charts, dashboards, and stories in Tableau.
Joshua N. Milligan, Tristan Guillevin
Graphical presentation of data enables us to easily understand complex data sets. Tableau 10 Complete Reference provides easy-to-follow recipes with several use cases and real-world business scenarios to get you up and running with Tableau 10.This Learning Path begins with the history of data visualization and its importance in today's businesses. You'll also be introduced to Tableau - how to connect, clean, and analyze data in this visual analytics software. Then, you'll learn how to apply what you've learned by creating some simple calculations in Tableau and using Table Calculations to help drive greater analysis from your data. Next, you'll explore different advanced chart types in Tableau. These chart types require you to have some understanding of the Tableau interface and understand basic calculations. You’ll study in detail all dashboard techniques and best practices. A number of recipes specifically for geospatial visualization, analytics, and data preparation are also covered. Last but not least, you'll learn about the power of storytelling through the creation of interactive dashboards in Tableau. Through this Learning Path, you will gain confidence and competence to analyze and communicate data and insights more efficiently and effectively by creating compelling interactive charts, dashboards, and stories in Tableau.This Learning Path includes content from the following Packt products:• Learning Tableau 10 - Second Edition by Joshua N. Milligan• Getting Started with Tableau 2018.x by Tristan Guillevin
Tableau 2019.x Cookbook. Over 115 recipes to build end-to-end analytical solutions using Tableau
Dmitry Anoshin, Teodora Matic, Slaven Bogdanovic, Tania...
Tableau has been one of the most popular business intelligence solutions in recent times, thanks to its powerful and interactive data visualization capabilities. Tableau 2019.x Cookbook is full of useful recipes from industry experts, who will help you master Tableau skills and learn each aspect of Tableau's ecosystem.This book is enriched with features such as Tableau extracts, Tableau advanced calculations, geospatial analysis, and building dashboards. It will guide you with exciting data manipulation, storytelling, advanced filtering, expert visualization, and forecasting techniques using real-world examples. From basic functionalities of Tableau to complex deployment on Linux, you will cover it all. Moreover, you will learn advanced features of Tableau using R, Python, and various APIs. You will learn how to prepare data for analysis using the latest Tableau Prep. In the concluding chapters, you will learn how Tableau fits the modern world of analytics and works with modern data platforms such as Snowflake and Redshift. In addition, you will learn about the best practices of integrating Tableau with ETL using Matillion ETL.By the end of the book, you will be ready to tackle business intelligence challenges using Tableau's features.
Harry Cooney, Daisy Jones
The Tableau Certified Data Analyst certification validates the essential skills needed to explore, analyze, and present data, propelling your career in data analytics. Whether you're a seasoned Tableau user or just starting out, this comprehensive resource is your roadmap to mastering Tableau and achieving certification success.The book begins by exploring the fundamentals of data analysis, from connecting to various data sources to transforming and cleaning data for meaningful insights. With practical exercises and realistic mock exams, you'll gain hands-on experience that reinforces your understanding of Tableau concepts and prepares you for the challenges of the certification exam.As you progress, expert guidance and clear explanations make it easy to navigate complex topics as each chapter builds upon the last, providing a seamless learning experience—from creating impactful visualizations to managing content on Tableau Cloud.Written by a team of experts, this Tableau book not only helps you pass the certification exam but also equips you with the skills and confidence needed to excel in your career. It is an indispensable resource for unlocking the full potential of Tableau.
Shweta Savale
Data is everywhere and everything is data! Visualization of data allows us to bring out the underlying trends and patterns inherent in the data and gain insights that enable faster and smarter decision making. Tableau is one of the fastest growing and industry leading Business Intelligence platforms that empowers business users to easily visualize their data and discover insights at the speed of thought. Tableau is a self-service BI platform designed to make data visualization and analysis as intuitive as possible. Creating visualizations with simple drag-and-drop, you can be up and running on Tableau in no time.Starting from the fundamentals such as getting familiarized with Tableau Desktop, connecting to common data sources and building standard charts; you will walk through the nitty gritty of Tableau such as creating dynamic analytics with parameters, blended data sources, and advanced calculations. You will also learn to group members into higher levels, sort the data in a specific order & filter out the unnecessary information. You will then create calculations in Tableau & understand the flexibility & power they have and go on to building story-boards and share your insights with others.Whether you are just getting started or whether you need a quick reference on a “how-to” question, This book is the perfect companion for you
Pablo Sáenz de Tejada, Daria Kirilenko
In today’s data-driven business world, advanced analytics set organizations apart. Basic visualizations no longer suffice for Tableau developers tackling complex data challenges. Written by Tableau experts who've trained Fortune 500 companies and led global analytics initiatives, this cookbook delivers battle-tested techniques with the perfect blend of technical depth and practical application.You’ll master advanced techniques such as geospatial analysis, data modeling for optimized workflows, and enterprise-scale content management. This book shows you how to leverage Tableau cloud’s Data Management capabilities to centralize data sources and ensure data quality for consistent analytics. You’ll also explore advanced management features such as the Content Migration Tool in Tableau 2025.1 and beyond.Bridging the gap between fundamentals and cutting-edge practices, this book extends Tableau’s capabilities with APIs, custom LOD expressions, virtual connections, data apps, and TabPy. You’ll gain the skills to solve complex business problems, create high-impact dashboards, and seamlessly integrate Tableau into your data strategy, all while adhering to security and governance best practices.*Email sign-up and proof of purchase required