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isfinite()

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Returns whether input is a finite value (is neither infinite nor NaN).

Syntax

isfinite(x)

Arguments

  • x: A real number.

Returns

A non-zero value (true) if x is finite; and zero (false) otherwise.

See also

  • For checking if value is null, see isnull().
  • For checking if value is infinite, see isinf().
  • For checking if value is NaN (Not-a-Number), see isnan().

Example

range x from -1 to 1 step 1
| extend y = 0.0
| extend div = 1.0*x/y
| extend isfinite=isfinite(div)
x y div isfinite
-1 0 -∞ 0
0 0 NaN 0
1 0 ∞ 0