Function sum_nan 

pub fn sum_nan<T>(
    input: &Array<T>,
    dim: i32,
    nanval: f64,
) -> Array<T::AggregateOutType>
where
    T: HasAfEnum,
    T::AggregateOutType: HasAfEnum,

Sum along specific dimension using user specified value instead of NAN values

Sum values of the input Array along dim dimension after replacing any NAN values in the Array with the value of the parameter nanval.

Parameters

• input is the input Array
• dim is reduction dimension
• nanval is value with which all the NAN values of Array are replaced with

Return Values

Array that is reduced along given dimension via addition operation