R Introduction: Part I

R Introduction: Part I

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1. Basic Syntax and Operations

In the initial section, you’ll dive into the foundational elements of R, such as generating output and performing elementary operations. This section will conclude with an exploration of the theory behind variables.

Basic Arithmetic

Using the print() Function

Integer Division and Remainders

Revenue Calculation

Assignment Operators

2. Basic Data Types and Vectors

You’ll become familiar with the vector class in R, which also handles individual values. Here, you’ll delve into the primary data types for singular values and learn how to manage multiple values of the same type simultaneously.

Type Conversion

Labeling Vectors

Indexing in Vectors

Modifying Vectors

Deleting Elements from Vectors

Arithmetic Operations with Vectors

3. Factors

Factors, also known as categorical variables, are prevalent in the real world. Examples include blood types, currencies, nationalities, and brands. Unlike numerical variables, factors have a limited set of possible values.

What is a Factor?

Indexing in Factors

Counting Values

Grouping Numeric Data

cat() Function

Enhancing the output with descriptive text can greatly improve the readability and user-friendliness of the results. In R, the cat() function serves this exact purpose.

With cat(), you can combine text, expressions, and variables to construct a meaningful output. Each element you want to include in the output should be separated by a comma, and strings of text must be enclosed in quotes (either double "" or single ''). By default, cat() separates each argument with a space.

Let's take a look at an example:

This approach clearly enhances the output, providing context and clarity. When you call the cat() function, it prints each message on a new line by default.

Task

Reflecting on the task of calculating full days and remaining hours from 435 hours, let's enhance the output format. The output should be structured as follows:

Remember to use integer division (%/%) to determine the number of whole days and the modulo operator (%%) for any remaining hours.

Everything was clear?

Section 1. Chapter 7

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Course Content

R Introduction: Part I

R Introduction: Part I

cat() Function

Enhancing the output with descriptive text can greatly improve the readability and user-friendliness of the results. In R, the cat() function serves this exact purpose.

With cat(), you can combine text, expressions, and variables to construct a meaningful output. Each element you want to include in the output should be separated by a comma, and strings of text must be enclosed in quotes (either double "" or single ''). By default, cat() separates each argument with a space.

Let's take a look at an example:

This approach clearly enhances the output, providing context and clarity. When you call the cat() function, it prints each message on a new line by default.

Task

Reflecting on the task of calculating full days and remaining hours from 435 hours, let's enhance the output format. The output should be structured as follows:

Remember to use integer division (%/%) to determine the number of whole days and the modulo operator (%%) for any remaining hours.

Everything was clear?

Section 1. Chapter 7

toggle bottom row

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