Using MATLAB to stack several 2D plots generated from .csv into a 3D plot - matlab

Question

I have code to generate a 2D plot from data stored in several .csv files:
clearvars;
files = dir('*.csv');
name = 'E_1';
set(groot, 'DefaultLegendInterpreter', 'none')
set(gca,'FontSize',20)
hold on;
for file = files'
csv = xlsread(file.name);
[n,s,r] = xlsread(file.name);
des_cols = {'Stress','Ext.1(Strain)'};
colhdrs = s(2,:);
[~,ia] = intersect(colhdrs, des_cols);
colnrs = flipud(ia);
file.name = n(:, colnrs);
file.name = file.name(1:end-500,:);
plot(file.name(:,2),file.name(:,1),'DisplayName',s{1,1});
end
ylabel({'Stress (MPa)'});
xlabel({'Strain (%)'});
title({name});
legend('show');
What I would like to do is modify the code in order to concatenate 2D plots made from the .csv data into a 3D plot where one of the axis is the index of the .csv in files kind of like the picture at the top of this post. I got the idea of using plot3 from that post but I'm not sure how to get it to work.
From what I understood I need to create 3 new matrices xMat, yMat, zMat. The columns of each matrix contain the data from the csv file and the yMat contains columns that are just the index of the csv but I'm not entirely sure where to go from here.
Thanks for any help!

Answer 1

You could call plot3 in the loop like something like the following. Basically change the Y-values to Z-Values. Then increment Y by one for each iteration of the loop.
figure;
a = axes;
grid on;
hold(a,'on');
x = 0:.1:4*pi;
for ii = 1:10
plot3(a,x,ones(size(x))*ii,sin(x));
end
view(40,40)
Modifying your code would look something like the following. Note that since I don't have your CSVs I can't test any of this.
clearvars;
files = dir('*.csv');
name = 'E_1';
set(groot, 'DefaultLegendInterpreter', 'none')
set(gca,'FontSize',20)
a = gca;
hold on;
ii = 1;
for file = files'
csv = xlsread(file.name);
[n,s,r] = xlsread(file.name);
des_cols = {'Stress','Ext.1(Strain)'};
colhdrs = s(2,:);
[~,ia] = intersect(colhdrs, des_cols);
colnrs = flipud(ia);
file.name = n(:, colnrs);
file.name = file.name(1:end-500,:);
plot3(a,file.name(:,2),ones(size(file.name(:,2))).*ii,file.name(:,1),'DisplayName',s{1,1});
ii = ii+1;
end
view(40,40);
ylabel({'Stress (MPa)'});
xlabel({'Strain (%)'});
title({name});
legend('show');