Plot data according to different ID

Hi

I have csv file that have 3 culomns, first is IDs, second is date/time and third is the actual data. The data includs measrments that occured at specific date/time for each ID, so that all measurments are displayed for eah ID one by one. I need to plot the data per ID and I need help on how to ask MATLAB to call data that belong to each ID and subplot them.

[Nora Khaled]

can you please give us a sample data to work with?

also, you mean that you want to plot measurement vs time/date for each ID, right ?

[Rik]

What did you try so far? Did you already Google how to read a csv file?

Answer 1

[Nora Khaled]

This might work

t = readtable('samle_data.xlsx');

% devide table into groups using ID
G = findgroups(t(:,1));    
dataByID = splitapply( @(varargin) varargin, t, G);

%use dataByID to plot 
[nID,~]=size(dataByID); % number of different IDs
figure;
hold on; 
for i=1:1:nID
    plot(dataByID{i,2},dataByID{i,3}); 
end 
xlabel('time/date');
ylabel('measurements'); 

[Soso]

Thank you very much for your help

Answer 2

[Soso]

Yes I want to plot measurement vs time/date for each ID.

Thanks

Answer 3

[Soso]

Yes, I know how to upload the file, I just need to know how I could call the data per ID and plot it over time.