Table - conditional maths and plots from variables
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Thiago de Aquino Costa Sousa
on 18 Sep 2022
Commented: Thiago de Aquino Costa Sousa
on 21 Sep 2022
Dear all,
I have a 57254x87 table, on which I need to perform some maths and plots with the tables. I have one column called Subject_Id (total of 8 particpants) and another one called Trial_Id (a total of 6 per particpant), and I need to plot the data from two others variables. For example, I am looking for a code that will take the first subject, then run a loop for each one of the 6 trials, ploting the data of my columns 3 and 4, and then take the second subject, and reproduces the same thing one more time, and so on for the 8 subjects.
I guess I need one loop inside the other, but I am not sure how to do it.
Any help will be very much appreciated.
3 Comments
Chunru
on 19 Sep 2022
Try to upload a mat file:
data = yourdata(1:200, :); % 1:200 or other number to demonstrate your case
Accepted Answer
Paul
on 19 Sep 2022
Check out splitapply
7 Comments
Paul
on 20 Sep 2022
Edited: Paul
on 20 Sep 2022
Only one splitapply is needed
Create some data in a table.
rng(100)
T = table;
T.subj = [ones(10,1); 2*ones(10,1)];
T.trial = 3*randi(2,20,1);
T.col3 = (1:20).';
T.col4 = T.subj + T.trial;
Make the plots
G = findgroups(T.subj,T.trial);
splitapply(@(subj,trial,col3,col4) makeplot(subj(1),trial(1),col3,col4),T.subj,T.trial,T.col3,T.col4,G);
function makeplot(subj,trial,col3,col4)
figure
plot(col3,col4,'-o')
title("subj = " + double(subj) + ", trial = " + double(trial));
end
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