Function isnan 

pub fn isnan<T>(array: &Array<T>) -> Array<bool>
where
    T: Float,

Test element-wise for NaN

Parameters

• array - Input array

Returns

Array of boolean values where True indicates NaN

Examples

use numrs2::prelude::*;

let a = Array::from_vec(vec![1.0, f64::NAN, 3.0, f64::INFINITY]);
let nan_mask = isnan(&a);
assert_eq!(nan_mask.to_vec(), vec![false, true, false, false]);