isnat

Determine NaT (Not-a-Time) elements

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Syntax

• tf = isnat(A)
  example

Description

example

tf = isnat(A) returns an array the same size as the datetime array, A, containing logical 1 (true) where the elements of A are Not-a-Time (NaTs) and logical 0 (false) where they are not. NaT represents a datetime that is undefined.

Examples

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Determine If Array Elements are NaT

Open Script

Create a datetime array from numeric values containing NaN.

d = datetime(2014,[1 2 NaN 4],1)

d = 

  1×4 datetime array

   01-Jan-2014   01-Feb-2014   NaT           01-Apr-2014

Determine if any elements of d are NaT (Not-a-Time).

isnat(d)

ans =

  1×4 logical array

   0   0   1   0

Input Arguments

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A — Input array
datetime array

Input array, specified as a datetime array.

More About

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Tall Array Support

This function fully supports tall arrays. For more information, see Tall Arrays.

See Also

isfinite | isinf

Introduced in R2014b

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