Create a matrix with columns of both datetime and double format

I want to create a matrix with these vectors:

a = [21-Mar-2021 07:44
    21-Mar-2021 17:35
    22-Mar-2021 07:48
    22-Mar-2021 17:46
    23-Mar-2021 07:49
    23-Mar-2021 17:48];

b = [21
    23
    24
    26
    27
    29];

When I try the following sentence, MATLAB gives me an error:

c=[a,b];

Error using datetime/horzcat (line 1335)

All inputs must be datetimes or date/time character vectors or date/time strings.

I don't know how to merge both columns in a single matrix. Can you help me?

Answer 1

[Mario Malic]

Hi,

Use a cell array or a table to do so.

% Using cell array
{datetime('today'), 5}

ans = 1×2 cell array
    {[02-May-2021]}    {[5]}

% Using table
dt = datetime('now');
num = 5;
table(dt, num)

ans = 1×2 table
             dt             num
    ____________________    ___

    02-May-2021 07:20:58     5 

[Steven Lord]

A table array would work, but a timetable array has some functionality for working with the date and time data above and beyond what you can do with a table.

dt = datetime('now');
num = 5;
tt = timetable(dt, num)

tt = timetable
             dt             num
    ____________________    ___

    02-May-2021 15:00:13     5