Check if the Object is a List in R Programming - is.list() Function

Check if the Argument is a Name in R Programming - is.name() Function

Last Updated : 19 Jun, 2020

is.name() function in R Language is used to return TRUE if the argument is name else returns FALSE. The is.name() and is.symbol() functions are identical.

Syntax: is.name(x) Parameters: x: R object to be tested

Example 1:

Python3

# R program to illustrate
# is.name() function

# Initializing a string
x <- "sample"

# Calling the is.name() function
# to check whether the argument is
# name or not
is.name(x)

Output:

[1] FALSE

Example 2:

Python3

# R program to illustrate
# is.name() function

# Coercing the argument to a name
x <- as.name("sample")

# Calling the is.name() function
# to check whether the argument is
# name or not
is.name(x)

Output:

[1] TRUE

Check if the Object is a List in R Programming - is.list() Function

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