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=seconds(1:5))

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

    1 sec      98    120 
    2 sec    97.5    111 
    3 sec    97.9    119 
    4 sec    98.1    117 
    5 sec     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 array

array

Input array.

Output Arguments

tf — True or false result

1 | 0

True or false result, returned as a 1 or 0 of data type logical.

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