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⇱ Check if an Object is an Expression in R Programming - is.expression() Function - GeeksforGeeks

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Check if an Object is an Expression in R Programming - is.expression() Function

Last Updated : 15 Jul, 2025
is.expression() function in R Language is used to check if the object passed to it as argument is of the expression class.
Syntax: is.expression(object) Parameters: object: Object to be checked
Example 1: Output: 
[1] "sin(pi/2)"
[1] FALSE
Example 2: Output: 
[1] 1
[1] TRUE
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