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_________ extract a subset of rows from a dataframe based on logical conditions.

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_________ extract a subset of rows from a dataframe based on logical conditions.

(a) rename

(b) filter

(c) set

(d) subset

I had been asked this question during an online exam.

My question comes from dplyr topic in chapter R – Data Storage, Formats, Objects and Operations of R Programming

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Best answer
Correct choice is (a) rename

For explanation I would say: rename is used to rename variables in a dataframe.

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