How can I convert 100 X Y and Z coordinates generated randomly in the form of a 100x100x100 matrix

close all
clear all
n = 100;
xm = 100;
ym = 100;
zm = 100;
x = 0;
y = 0;
z = 0;
for i=1:1:n
    S(i).xd=rand(1,1)*xm;
    XR(i)=S(i).xd;
    S(i).yd=rand(1,1)*ym;
    YR(i)=S(i).yd;
    S(i).zd=rand(1,1)*zm;
    ZR(i)=S(i).zd;
end

this gives me 100 random x, y and z-axis. I can plot the points but how can i group them as a 3D matrix of 100x100x100 such that matrix entries are (XR(i), YR(i), ZR(i))

[Tamoor Shafique]

I should say all the rest entries in 100x100x100 matrix should result (0,0,0) but only the 100 points should say(XR(i), YR(i), ZR(i)) so the actual coordinate values

[Ameer Hamza]

Each index of 100x100x100 matrix can only contain a scalar value? What do you expect the output at index (XR(i), YR(i), ZR(i))? Do you want these points to be one and the rest of the points to be zero?

[Tamoor Shafique]

1. XR(i), YR(i), and ZR(i) are 100 random coordinates each. for 100 iterations of i. so each iteration gives a 3d point.
2. yes the 100 points should on the 100 should be 1 that would do.

[Matt J]

yes the 100 points should on the 100 should be 1 that would do.

But that is what I gave you below.

Answer 1

[Matt J]

If you mean you want a 100x100x100 binary array A with one hundred randomly located entries where A(i,jk)=1, then

A=false(100,100,100);
A( randperm(numel(A),100) )=1;

whos A

  Name        Size                   Bytes  Class      Attributes

  A         100x100x100            1000000  logical              

nnz(A)

ans = 100

[Tamoor Shafique]

I need 100x100x100 array of actual coordinates please for example (24,58,19) if thats possible. I know this might feel strange but this is the case

[Tamoor Shafique]

so instead of ones at the corresponding location i wish to display the actual value of point