# 3D Figures of Looping Variables

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Zaharaddeen Hussaini on 10 Sep 2018
Commented: ADragon on 10 Sep 2018
Hi,
I am tryig to make a 3D plot of some variables all in a loop. The best way I can describe it by citing an example.
For example:
clc;
clear;
close all;
count = 1;
for A = 1:5
for B = 3:8
for C = 2:7
Sum= A+B+C;
Product = A*B*C;
val(1) = A;
val(2) = B;
val(3) = C;
val(4) = Sum;
val(5) = Product;
Save (count,:) = val;
count = count+1;
end
end
end
Now , I want to have three different figures for Variables A, B & C. Each figure has on the X axis a variable (Say C in the first case), Sum on the Y axis and Products on the Z- Axis with only C varying while A & B points are kept fixed.
2nd Figure would have B varying as A & C are fixed. The last would have A Varying with B & C fixed.
Any help/guide on how to this quickly and effectively please?

Hi Zaharaddeen, you can use a for loop to plot each variable.
Vars = {'A','B','C'};
for i = 1:3
figure
plot3(Save(:,i),Save(:,4),Save(:,5))
xlabel(Vars{i})
ylabel('Sum')
zlabel('Product')
grid on
end

Zaharaddeen Hussaini on 10 Sep 2018
So best way to do it is to make the plot after the loops are done. Kept trying to do it whilst inside the loop.
Thanks a lot. You made it look very easy.
No problem! Yes, I would recommend plotting after you construct your matrix. If you do it inside the loop, Matlab will create an object handle for each point which I don't think is very efficient. AD