Lecture C++ programming: from problem analysis to program design - Chapter 6: User-defined functions I. In this chapter, you will: Learn about standard (predefined) functions and discover how to use them in a program; learn about user-defined functions; examine value-returning functions, including actual and formal parameters; explore how to construct and use a value-returning, user-defined function in a program.
This guide is an ideal learning tool and reference for Apache Pig, the open source engine for executing parallel data flows on Hadoop. With Pig, you can batch-process data without having to create a full-fledged application—making it easy for you to experiment with new datasets.
Programming Pig introduces new users to Pig, and provides experienced users with comprehensive coverage on key features such as the Pig Latin scripting language, the Grunt shell, and User Defined Functions (UDFs) for extending Pig. ...
In this chapter, you will: Learn how to construct and use void functions in a program, discover the difference between value and reference parameters, explore reference parameters and value-returning functions, learn about the scope of an identifier, examine the difference between local and global identifiers, discover static variables, learn function overloading, explore functions with default parameters.
Expected asset return measures are needed to construct portfolios, plan for retirement, value equities and options, and forecast corporate cash flows. In this lecture, students will: Compute historical returns for stocks and market indexes; estimate expected asset returns using the Capital Asset Pricing Model (CAPM), Global CAPM (GCAPM), the Fama-French 3 Factor Model (FF3F), and fundamental analysis; use excel styles and formats; create modules and write simple VBA programs.
(BQ) Part 2 book "MATLAB an introduction with applications" has contents: User-Defined functions and function files; polynomials, curve fitting, and interpolation; applications in numerical analysis; three dimensional plots; symbolic math.
Best practices and expert techniques for today's most demanding apps
As the world's most popular, general purpose, open source scripting language, PHP is frequently used with MySQL to create high-traffic, mission-critical applications. This indispensable book shares proven, author-tested best practices and expert techniques that can be applied to even the most demanding MySQL-driven PHP apps.
When you write stored procedures, triggers, and user-defined functions, you need to
decide whether to use traditional Transact-SQL or a programming language that is
compatible with the .NET Framework, such as Visual Basic .NET or C#. Transact-
SQL is best for situations in which the code primarily performs data access with little
or no procedural logic. Programming languages that are compatible with the
.NET Framework are best-suited for computationally-intensive functions and
procedures that feature complex logic or for situations where you want to take
advantage of the .
For simplicity,we assume that skylines are computedwith respect tomin con-
ditions on all dimensions; however, all methods discussed can be applied with
any combination of conditions. Using the min condition, a point pi dominates1
another point pj if and only if the coordinate of pi on any axis is not larger than
the corresponding coordinate of pj . Informally, this implies that pi is preferable
to pj according to any preference (scoring) function which is monotone on all
Motivation for including relational constraints other than equality within grammatical formalisms has come from discontinuous constituency and partially free word order for natural languages as well as from the need to define combinatory operations at the most basic level for languages with a two-dimensional syntax (e.g., mathematical notation, chemical equations, and various diagramming languages). This paper presents F-PATR, a generalization of the PATR-II unification-based formalism, which incorporates relational constraints expressed as user-defined functions. ...
In this chapter, you will: Learn how to create and manipulate your own simple data type—called the enumeration type; become familiar with the typedef statement; learn about the namespace mechanism; explore the string data type, and learn how to use the various string functions to manipulate strings.
The best way to write queres using LINQ to SQL is by having a DataContext-derived class in your code that exposes all the tables, stored procedures, and user-defined functions you need as properties of a class instance. You also need entity classes that are mapped to the database objects. As you have seen in previous chapters, this mapping can be made by using attributes to decorate classes or through an external XML mapping file. However, writing this information by hand is tedious and error-prone work. You need some tools to help you accomplish this work....
Historically, a course on data structures has been a mainstay of most computer
science departments. Over the last 18 years, however, the focus of this course
has broadened considerably. The topic of data structures has now been subsumed
under the broader topic of abstract data types (ADTs)—the study of classes of
objects whose logical behavior is defined by a set of values and a set of operations.
All these changes have a huge impact on the way the database
query optimizer works. Having user-defined functions deep in-
side the query plans makes cost estimation problematic. Having
real data with high skew has always been problematic, but in this
new world the relational operators are just the outer loop of a non-
procedural program that should be executed with the least cost
and in parallel.
Cost-based static-plan optimizers continue...
This chapter defines system software and discusses two types of system software: operating systems and utility programs. You learn what an operating system is and explore user interfaces, operating systems features, and operating system functions.
In this chapter students obtain the programming skills needed to write financial VBA programs which require the use of loops, conditional statements, and matrix operations. This topic will describe: Dim statements and option explicit, debugging, data types (as object), the use of functions in functions, for loops and nested loops, arrays and option base 1.
Attributes are a simple technique for adding metadata information and behavior to code within applications. You use the reflection technique to pick the attribute related information at runtime. This chapter introduces attributes and reflection and the functions they perform in C# applications. This chapter discusses attribute syntax, and how to use some of the predefined attributes. This chapter discusses also discusses how to create customized user-defined attributes. In addition, this chapter discusses reflection and how to use it to extract attribute related information. ...
AutoIt is becoming increasingly popular in the system administration field as a tool for automating administrative tasks. Although this is one of its more popular uses, you can use AutoIt to automate anything in a Windows environment. This powerful scripting language can run any program and manipulate keyboard and mouse input. With its RunAs support, administrators can perform unattended installations and configuration changes using embedded administrative privileges.
This guide teaches you the foundations of the AutoIt v3 language.
Reusing Code and Writing Functions CHAPTER 5
This HTML table is the result of calling create_table().
Passing a parameter allowed us to get data that was created outside the function—in this case, the array $data—into the function. As with built-in functions, user-defined functions can have multiple parameters and optional parameters. We can improve our create_table() function in many ways, but one way might be to allow the caller to specify the border or other attributes of the table. Here is an improved version of the function.
The concept of an SQL user-defined function (UDF) is important for understanding SAS In-Database processing because
it is the very mechanism that enables work from SAS programs to be executed inside the DBMS. A UDF is simply a
packaged routine that can be invoked from SQL statements. Most DBMSs provide a framework for packaging code into
executable modules, storing them inside the database, and making them available to clients of the DBMS. In short, UDFs
make it possible to extend the SQL semantics implemented by the DBMS.