Random values in timetable

Hello, first of all I'm quite a Matlab newbie.

My goal is to fill a time table with random values.

Currently, the current value of the loop keeps overwriting the previous value. However, I would like to have all values in one timetable.

n=1

    for i = 1:5
    Time = datetime('now');
    Conductivity = rand(1,1);
    pause(n);
    data = timetable(Time,Conductivity);
    end 

Thanks in advance for your help!

Answer 1

[Wan Ji]

Do by the following code

data = timetable;
n=1;
for i = 1:5
    Time = datetime('now');
    Conductivity = rand(1,1);
    pause(n);
    data = [data;timetable(Time,Conductivity)];
end

[Wan Ji]

>> data

data =

  5×1 timetable

           Time              Conductivity   
    ___________________    _________________

    2021-08-24 19:56:43    0.179120082915553
    2021-08-24 19:56:43    0.680274695194285
    2021-08-24 19:56:43    0.915462391603304
    2021-08-24 19:56:43     0.12286950797456
    2021-08-24 19:56:43    0.585484044951836

[Robin Karl]

Thanks ! That was fast :) works perfect

Answer 2

[Turlough Hughes]

You can collect the data in the loop and then use timetable

n = 1;
for i = 1:5
    Time(i,1) = datetime('now');
    Conductivity(i,1) = rand();
    pause(n)
end

data = timetable(Conductivity,'RowTimes',Time)