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________ add new variables/columns or transform existing variables.

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________ add new variables/columns or transform existing variables.

(a) mutate

(b) add

(c) apped

(d) arrange

This question was addressed to me in an online interview.

The question is from Data Wrangling topic in chapter Profiling, Simulation and Data Analysis of R Programming

1 Answer

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Best answer
Correct option is (a) mutate

Explanation: arrange is used to reorder rows of a data frame.

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