isnat

Determine NaT (Not-a-Time) elements

Syntax

tf = isnat(A)

Description

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

Examples

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Determine If Array Elements are NaT

Open Live Script

Create a datetime array from numeric values containingNaN.

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

d =1x4 datetime01-Jan-2014 01-Feb-2014 NaT 01-Apr-2014

Determine if any elements ofdareNaT(Not-a-Time).

isnat(d)

ans =1x4 logical array0 0 1 0

Input Arguments

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`A`—Input array
datetime array

Input array, specified as a datetime array.

Extended Capabilities

Tall Arrays
Calculate with arrays that have more rows than fit in memory.

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

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

This function fully supports distributed arrays. For more information, seeRun MATLAB Functions with Distributed Arrays(Parallel Computing Toolbox).

isnat

Syntax

Description

Examples

Determine If Array Elements are NaT

Input Arguments

`A`—Input array
datetime array

Extended Capabilities

Tall Arrays
Calculate with arrays that have more rows than fit in memory.

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

See Also

MATLAB Documentation

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isnat

Syntax

Description

Examples

Determine If Array Elements are NaT

Input Arguments

A—Input arraydatetime array

Extended Capabilities

Tall ArraysCalculate with arrays that have more rows than fit in memory.

C/C++ Code GenerationGenerate C and C++ code using MATLAB® Coder™.

Distributed ArraysPartition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

See Also

MATLAB Documentation

金宝app

Try MATLAB, Simulink, and Other Products

`A`—Input array
datetime array

Tall Arrays
Calculate with arrays that have more rows than fit in memory.

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.