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How many types of data structures does R language have?

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How many types of data structures does R language have?

(a) 2

(b) 3

(c) 5

(d) 8

I have been asked this question in an online interview.

Asked question is from Functions in chapter Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

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The correct choice is (a) 2

The best I can explain: R language consists of Homogeneous and Heterogeneous data structures. Homogeneous data structures have the same type of objects – Vector, Matrix and Array. Heterogeneous data structures have a different type of objects – Data frames and lists.

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