plot3 a multidimensional array

Hi everyone.

How I can extract the data of each dimension of multidimensional array to use them as the input for the plot3 function? I have a multidimensional array of size (9*3600*7) and I want to plot it using plot3 or in a 3D shape. I want to have the axis data as x=3600, y=9 and z=7.

Thank you.

[Matt J]

Nothing in the post is clear (at least to me).

[Leila Rajabpour]

I rewrote my question to make it clear.

Answer 1

[Sarvesh Kale]

Hi Leila Rajabpour,

part 1)

As an example for matrix V, I am using rand function to generate data, here is code to plot your timeseries data

V=rand(9,3600,7); % REPLACE THIS WITH YOUR OWN DATA     
figure ;
for i =1:7
    plot(V(:,:,i)'); % you have to supply transpose of V, V(:,:,)' is transpose 
end

OR

V=rand(9,3600,7); % REPLACE THIS WITH YOUR OWN DATA     
figure ;
V = permute(V,[2,1,3]); % we have rearranged the array V, interchanged row and column in each 7 dimensions 
for i =1:7
    plot(V(:,:,i)); % you have to supply V
end

you can get more information on plot and permute using the following links

https://in.mathworks.com/help/matlab/ref/plot.html

https://in.mathworks.com/help/matlab/ref/permute.html

part 2) How to plot using plot3 ?

you can get more information on plot3 using following https://in.mathworks.com/help/matlab/ref/plot3.html

plot3(X,Y,Z) plots coordinates in 3-D space.

• To plot a set of coordinates connected by line segments, specify X, Y, and Z as vectors of the same length.
• To plot multiple sets of coordinates on the same set of axes, specify at least one of X, Y, or Z as a matrix and the others as vectors.

V(:,1,1) % will give you first column of first slice 

[Leila Rajabpour]

Thank you Sarvesh for the answer. It was really helpful.