R Programming for Statistics and Data Science - Slicing and Indexing a Vector in R

R Programming for Statistics and Data Science - Slicing and Indexing a Vector in R

Assessment

Interactive Video

Information Technology (IT), Architecture, Mathematics

University

Hard

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The video tutorial introduces the concepts of indexing and slicing in R programming, focusing on vectors. It explains how to select specific values or a series of values using indexing, including by position and by name. The tutorial also covers slicing, which involves selecting consecutive values, and demonstrates how to exclude certain values using the minus operator. The video emphasizes the importance of these techniques for working with matrices and data frames, encouraging viewers to practice for better understanding.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are indexing and slicing in the context of vectors?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How can you create a new variable with specific values from a vector?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the notation system for selecting values within a vector.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the difference between indexing by position and indexing by name?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how slicing works and how it differs from indexing.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

How can you select all elements in an object except for a specific slice?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What role do comparison operators play in slicing?

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