check.integer: Check if a number is integer

In installr: Using R to Install Stuff on Windows OS (Such As: R, 'Rtools', 'RStudio', 'Git', and More!)

Check if a number is integer

Description

Returns TRUE/FALSE on whether a number is integer or not.

Usage

check.integer(N)

Arguments

N	A number (if a vector is supplied only the first element is checked - without warning)

Details

Surprising as it may be, R doesn't come with a handy function to check if the number is integer. This function does just this.

Value

TRUE/FALSE on whether a number is integer or not.

Author(s)

VitoshKa

Source

https://stackoverflow.com/questions/3476782/how-to-check-if-the-number-is-integer

Examples

check.integer <- installr:::check.integer
check.integer(4) # TRUE
check.integer(3243) #TRUE
check.integer(3243.34) #FALSE
check.integer("sdfds") #FALSE
check.integer(1e4) #TRUE
check.integer(1e6) #TRUE
check.integer(1e600) #FALSE - the function is having a hardtime with Inf...
rm(check.integer)

installr documentation built on Nov. 13, 2022, 1:06 a.m.