R Programming for Statistics and Data Science - Dealing with Missing Data in R

R Programming for Statistics and Data Science - Dealing with Missing Data in R

Assessment

Interactive Video

Information Technology (IT), Architecture, Social Studies

University

Hard

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The video tutorial covers handling missing values in R, explaining how missing values, represented as NA, can disrupt data operations. It introduces methods to identify and handle these values using R functions like na.rm, is.na, and any. The tutorial demonstrates replacing missing values with meaningful data, such as using the mean or median for numerical data. The lesson concludes with a wrap-up and encourages viewers to practice with exercises.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are missing values in a data frame and how are they represented in R?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how the na.rm argument is used in R functions.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What function can be used to check for missing values in a data set?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How can you replace missing values in a specific column of a data frame?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What are some strategies for dealing with missing numerical data?

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