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Data Science and Machine Learning with R - Vectors - Part One

Data Science and Machine Learning with R - Vectors - Part One

Assessment

Interactive Video

•

Information Technology (IT), Architecture

•

University

•

Practice Problem

•

Hard

Created by

Wayground Content

FREE Resource

This video tutorial introduces vectors in R, explaining their types and how to create them using the vector function. It covers the use of built-in functions for different vector types and explores practical vector operations. Advanced concepts like shorthand notation and exploratory data analysis are discussed. The tutorial concludes with an introduction to using R notebooks for organizing code.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key characteristic of a vector in R?

It is always of numeric type.

It is a collection of elements of the same type.

It can only contain character data.

It can contain elements of different types.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'mode' parameter in the vector function specify?

The name of the vector

The default value of the vector

The type of elements in the vector

The length of the vector

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a built-in function for creating vectors in R?

numeric()

logical()

string()

character()

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the default value for elements in a logical vector?

False

1

Null

True

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you create a vector with specific elements in R?

Using the c() function

Using the vector() function

Using the array() function

Using the list() function

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will the class function return for a vector created with c(1, 2, 3)?

Character

Logical

Integer

Numeric

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the length function return when applied to a vector?

The number of elements in the vector

The sum of the elements in the vector

The type of the vector

The first element of the vector

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