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What is the meaning of “<-“?

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What is the meaning of “<-“?

(a) Functions

(b) Loops

(c) Addition

(d) Assignment

This question was addressed to me in a national level competition.

The query is from Basics topic in section History, Overview and Getting Started of R Programming

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Right answer is (d) Assignment

The explanation: The expression a <- 16 creates a variable called a and gives it the value 16 called assignment. The variable on the left is assigned to the value on the right. The left side should have only a single one.

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