istabular

Determine if input is table or timetable

Since R2021b

Syntax

tf = istabular(A)

Description

tf = istabular(A) returns logical 1 (true) if A is either a table or a timetable, and logical 0 (false) otherwise.

This syntax is equivalent to tf = istable(A) || istimetable(A), but is more convenient.

Examples

Determine If Inputs Are Tables or Timetables

Create a table using the table function.

T = table([98;97.5;97.9;98.1;101],[120;111;119;117;118])

T=5×2 table
    Var1    Var2
    ____    ____

      98    120 
    97.5    111 
    97.9    119 
    98.1    117 
     101    118 

To confirm that T is either a table or a timetable, use the istabular function.

tf = istabular(T)

tf = logical
   1

Now convert T to a timetable.

TT = table2timetable(T,'RowTimes',hours(1:5))

TT=5×2 timetable
    Time    Var1    Var2
    ____    ____    ____

    1 hr      98    120 
    2 hr    97.5    111 
    3 hr    97.9    119 
    4 hr    98.1    117 
    5 hr     101    118 

The istabular function still returns 1 for TT.

tf = istabular(TT)

tf = logical
   1

However, the istable function returns 0 because TT is a timetable, not a table.

tf = istable(TT)

tf = logical
   0

Input Arguments

A — Input variable

any data type

Input variable.

Extended Capabilities

Tall Arrays

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

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

Version History

Introduced in R2021b