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________ opens a connection to a file compressed with gzip.

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________ opens a connection to a file compressed with gzip.

(a) url

(b) gzfile

(c) bzfile

(d) file

The question was asked in examination.

Enquiry is from Connection Interfaces in portion R – Data Storage, Formats, Objects and Operations of R Programming

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The correct answer is (b) gzfile

For explanation I would say: “file” opens a connection to a file.

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