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Questions and Answers
What is the primary purpose of using variables in programming?
What is the primary purpose of using variables in programming?
- To reduce the number of lines of code
- To make the program more efficient
- To increase the complexity of the program
- To make the program more flexible (correct)
What is the term for a set of instructions written in a computer language?
What is the term for a set of instructions written in a computer language?
- Algorithm
- Computer Language
- Software Program (correct)
- Script
What type of variable is used to store a collection of data, such as numbers or strings?
What type of variable is used to store a collection of data, such as numbers or strings?
- Lists (correct)
- Data Frames
- String
- Numeric
What is the term for the language used to write algorithms?
What is the term for the language used to write algorithms?
What is the result of running a script with a set of inputs?
What is the result of running a script with a set of inputs?
What is the purpose of an algorithm in a program?
What is the purpose of an algorithm in a program?
What is the symbol used to assign a value to a variable?
What is the symbol used to assign a value to a variable?
Study Notes
What is a Program?
- A program is a set of instructions written in a computer language that a computer follows to perform a specific task.
- The set of instructions is called an algorithm.
Programming Language
- A programming language is the language used to write algorithms.
Variables
- Variables are used in programs to make the programs more flexible.
- Variables are used to store a set of things (usually numbers) that are provided to the script.
- The algorithm runs using the variables and provides a result.
- Variables can be used to make recipes more flexible, for example, by providing the number of people being cooked for.
Types of Variables
- Numeric variables
- String variables
- Data Frames variables
- Lists variables
Creating a Variable
- To create a variable, simply write the new variable name and assign a value using the assignment operator.
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Description
Review notes for a programming final exam covering R code basics, data structures, conditional statements, loops, functions, and data visualization. Topics include basic operations, sequences, vectors, matrices, data frames, lists, and statistical functions.
