R: MATLAB isprime function

isprime {matlab} | R Documentation

## MATLAB isprime function

### Description

Array elements that are prime numbers.

### Usage

    isprime(x)

### Arguments

`x` | numeric vector or matrix containing nonnegative integer values

### Value

Returns an array (or vector) the same size as `x` containing logical 1 (`true`) for the elements of `x` which are prime, and logical 0 (`false`) otherwise.

### Author(s)

H. Borchers hwborchers@googlemail.com, P. Roebuck proebuck@mdanderson.org

### See Also

`factors`, `primes`

### Examples

    x <- c(2, 3, 0, 6, 10)
    ans  <- isprime(x)	## 1, 1, 0, 0, 0
    as.logical(ans)         ## true, true, false, false, false

[Package matlab version 1.0.2 Index]