isNanInf

isNanInf(X, [includeNull=false])

Check each element in X to see if it is a NaN/Inf value. Return a BOOLEAN type of the same length as X. If includeNull is set to true, null values will return true. The default value of includeNull is false.

X is a DOUBLE type scalar, vector or matrix.

includeNull is a BOOLEAN.

Returns a Boolean value with the same form as X.

x = [1.5, float(`nan), 2.3, float(`inf), NULL, 3.7]  
  
// includeNull = false (defaule), null values will return false  
isNanInf(x)  
// output: [false,true,false,true,false,false]

// includeNull = true, null values will return false 
isNanInf(x)  
// output: [false,true,false,true,true,false]

Related function: countNanInf