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This short video will walk the viewer through the computer programming concepts of Parameters and Arguments.

Write a method that will take any number of arguments you would like to pass to it; it will treat them as an array.

How to pass objects to a function and get objects returned back from functions.

Become more proficient in writing functions by learning the standard way to return more complex results from functions using a list, ...

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Sometimes it is useful to be able to pass any extra arguments to another function. For example, if a new plotting function is created ...

... function and we've seen local variables and now we're going to expand that by calling a function that takes a parameter so what ...

The most helpful functions return clear warnings and errors when something is wrong. This video introduces the warning() and ...

This video introduces the basic structure of a function, covering the declaration of the function, using an argument, and returning a ...

A quick review of the topics covered in the Section 1 videos: vectors, matrices, subsetting, and a few standard functions. Also learn ...

Global Variables in Python. View an annotated PDF transcription of the video: ...

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When you pass an object to a method, you are passing a copy of the *reference* to that object. That lets you update an object's ...

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View all the objects in the workspace using ls(), remove objects using rm(), cast a variable as a different type using an as.[type]() ...

Some decision structures require you to put if statements inside if statements. That's called a “nested if” statement.

In this screencast, we're going to work on a function design that will use the list of integers type that we designed in the previous ...

Find out how scanf() works its magic of changing arguments, and how you can use pointers to do the same.

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Use the invisible() function in place of return() in a function to prevent the output from printing to the user's screen but still allow the ...

In a preceding video, we had duplicated code to read the user input outside the loop and inside the loop. To avoid duplicated ...

How to pass arrays to methods and return arrays as results.

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Here we are starting with a partially designed function. This function will take an integer as input and return the integer doubled.