isnan
The isnan function returns whether input is Not-a-Number (NaN) value.
Syntax
isnan( X )
Arguments
- X: A real number.
Results
A non-zero value (true) if X is NaN, and zero (false) otherwise.
Examples
This returns false:
print isnan( 42 )This returns true:
print x = toint( 'pizza' )
| extend y = isnan( x )