Check if the elements of a Vector are Finite, Infinite or NaN values in R Programming – is.finite(), is.infinite() and is.nan() Function

is.finite() function in R Language is used to check if the elements of a vector are Finite values or not. It returns a boolean value for all the elements of the vector.

Syntax: is.finite(x)

Parameters:
x: Vector to be checked

Example:

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# R program to illustrate
# the use of is.finite() function
  
# Creating a vector
x <- c(1, 2, 3, 4, 5, NA, 6, 7)
  
# Calling is.finite() function
is.finite(x)

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Output:



[1]  TRUE  TRUE  TRUE  TRUE  TRUE FALSE  TRUE  TRUE

is.infinite() Function

is.infinite() Function in R Language is used to check if the vector contains infinite values as elements. It returns a boolean value for all the elements of the vector.

Syntax: is.infinite(x)

Parameters:
x: Vector to be checked

Example:

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# R program to illustrate
# the use of is.infinite() function
  
# Creating a vector
x <- c(1, 2, Inf, 4, -Inf, 6)
  
# Calling is.infinite() function
is.infinite(x)

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Output:

[1] FALSE FALSE  TRUE FALSE  TRUE FALSE

is.nan() Function

is.nan() Function in R Language is used to check if the vector contains any NaN(Not a Number) value as element. It returns a boolean value for all the elements of the vector.

Syntax: is.nan(x)

Parameters:
x: Vector to be checked

Example:

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# R program to illustrate
# the use of is.nan() function
  
# Creating a vector
x <- c(1, 2, -Inf, NaN, NaN, NaN)
  
# Calling is.nan() function
is.nan(x)

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Output:

[1] FALSE FALSE FALSE  TRUE  TRUE  TRUE



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