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reactive design patterns
... minimal dependencies among individual system components. Because they're designed to use fresh tools like Scala and Akka, they can combine familiar ideas, such as message passing, with new ideas like actor-based concurrency and CQRS, the Command-Query- ...
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Intelligent Techniques for Planning
The Intelligent Techniques for Planning presents a number ofmodern approaches to the area of automated planning. Theseapproaches combine methods from classical planning such as theconstruction of graphs and the use of domain-independent heuristicswith ...
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Programming 101--2018
What You Will Learn
Gain basic programming skills
Build fun and creative programs
Use files for making a holiday card
Combine videos, images, and graphics in a Processing sketch
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Real-Time C++, 2nd Edition.pdf
C++ programs combine class types that encapsulate objects with procedural subroutines in order to embody the functionality of the application. This chapter presents
these main language elements of C++ using a short, intuitive program that toggles
an LED ...
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Programming 101: The How and Why of Programming 2018
... .
What You Will Learn
Gain basic programming skills
Build fun and creative programs
Use files for making a holiday card
Combine videos, images, and graphics in a Processing sketch
Who This Book Is For
Anyone who has been thinking about trying ...
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Your Excel Survival Kit pdf
... chapter shows you how to remove/complete
blank rows, columns, and cells. You will learn some clever quick
techniques to clean, combine, and amend existing data. You will also
see examples of using formulas to extract specific pieces of data from a
data ...
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Introducing the MySQL 8 Document Store
... to be forced into one paradigm or the other, but combine both approaches by using the Document Store.
MySQL 8 was ... MySQL 8
Master the new X Developer Application Programming Interfaces
Combine SQL and JSON in the same database and application
Migrate ...
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Mastering The Faster Web with PHP, MySQL, and JavaScript 1st pdf
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Identify and simplify overly complex JavaScript code
Explore and implement UI design principles that effectively enhance the performance
Combine web technologies to boost web server performance
Who This Book Is For
The audience for this book would be ...
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R Graphics Essentials for Great Data Visualization 1st pdf
... plots and correlation coefficients to scatter plots - Key methods for analyzing and visualizing multivariate data - R functions and packages for plotting time series data - How to combine multiple plots on one page to create production-quality figures.
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R七种武器之plyr第一部分(视频)
plyr包可以进行类似于数据透视表的操作,将数据分割成更小的数据,对分割后的数据进行些操作,最后把操作的结果汇总。
本文主要介绍以下内容:
Split-Aapply-Combine 原理介绍
baby_names的名字排名
求分段拟合的系数
部分其他函数介绍
在正式开始之前,请确保电脑上已经安装plyr,如果没有,通过install.packages()函数进行安装
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