parse()
function in R Language is used to convert an object of character class to an object of expression class.
Syntax: parse(text = character)
Parameters:
character: Object of character class
Example 1:
# R program to convert # character to expression # Creating an object of character class x <- "sin(pi / 2)" # Class of object class(x) # Calling parse() Function x1 <- parse(text = x) # Class of parsed object class(x1)
Output:
[1] "character" [1] "expression"
Example 2:
# R program to convert # character to expression # Creating an object of character class x <- "2 ^ 3" # Evaluating the value of object eval(x) # Calling parse() Function x1 <- parse(text = x) # Evaluating the value of object eval(x1)
Output:
[1] "2^3" [1] 8
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