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Get the Sign of Elements of a Numeric Vector in R Programming – sign() Function
  • Last Updated : 25 Jun, 2020
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sign() function in R Language is used to find the sign of the elements of the numeric vector provided as argument. It does not work on complex vectors.

Syntax: sign(x)

x represents numeric vector

Returns: 1 for Positive number and -1 for Negative Number

Example 1:

# Create a variable
x <- 1
y <- -100
# Check sign
cat("Sign of x:", sign(x), "\n")
cat("Sign of y:", sign(y))


Sign of x: 1 
Sign of y: -1

Example 2:

# Creating a vector
x <- c(1, 5, 0, -10, 100, -20, 10, -69)
# Check Sign
cat("Sign of elements of vector x: ", sign(x), "\n")


Sign of elements of vector x:  1 1 0 -1 1 -1 1 -1 

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