I want to use plot

Hello, i want to describe 10 points, I want to use function plot3.

I have 10 points save to cell Z. one point have the coordinates[x,y,z], but I can have a multi-dimensional space. I want to make it work multidimensional space[x,y,z,k,l,m,n]

for example:

Z = 

    {1x1 cell}    {1x7 cell}    {1x2 cell}

Z{1}= [1x3 double] - has one point
Z{2}= [1x3 double]    [1x3 double]    [1x3 double]    [1x3 double]    [1x3 double] [1x3 double] - has seven points
Z{3}= [1x3 double]    [1x3 double - has two points.

i want to describe Z{1} - green, Z{2}- blue,Z{3}-red.

Thanks.

Answer 1

[Azzi Abdelmalek]

z={{rand(1,3)},[{rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)}],[{rand(1,3)} {rand(1,3)} ] }
cl='gbr'
for k=1:numel(z)
  y=cell2mat(z{k}')
  scatter3(y(:,1),y(:,2),y(:,3),'facecolr',cl(k))
  hold on
end
hold off

[Tomas]

If I have for example 5 groups, z =

    {1x1 cell}    {1x7 cell}    {1x2 cell}    {1x2 cell}    {1x2 cell}

how to describe ? How do I draw instead point ring or star in graf ?

Thanks.

[Azzi Abdelmalek]

z={{rand(1,3)},[{rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)}],[{rand(1,3)} {rand(1,3)} ] }
cl='gbr'
for k=1:numel(z)
  y=cell2mat(z{k}')
  plot3(y(:,1),y(:,2),y(:,3),['-' cl(k) 's'])
hold on
end
hold off

[Tomas]

thanks

[Tomas]

One more question, when i have matrix, for example T=[ 1 2 3; 1 2 3] Can I use plot 3?

[Azzi Abdelmalek]

You have to explain what your matrix is representing

[Tomas]

i want universal script, so that I could draw centroid in graf,

for example i have once, matrix T=[ 1 4 6; 7 8 9], once T=[ 1 7 8; 1 2 3; 7 8 9]

matrix T is centroid,[ 1 4 6]is coordinates of the centroid

[Azzi Abdelmalek]

This is not clear for me, maybe you should post a new question

Answer 2

[Walter Roberson]

pts = cell2mat(vertcat(Z{:}));
colors = [repmat(1,length(Z{1}),1); repmat(2,length(Z{2}),1); repmat(3, length(Z{3}), 1)];
pointsize = 12;
scatter3(pts(:,1), pts(:,2), pts(:,3), pointsize, colors);

[Tomas]

Z={{rand(1,3)},[{rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)} {rand(1,3)}],[{rand(1,3)} {rand(1,3)} ] }

pts = cell2mat(vertcat(Z{:})); colors = [repmat(1,length(Z{1}),1); repmat(2,length(Z{2}),1); repmat(3, length(Z{3}), 1)]; pointsize = 12; scatter3(pts(:,1), pts(:,2), pts(:,3), pointsize, colors);

??? Error using ==> vertcat CAT arguments dimensions are not consistent.

Error in ==> skuskaplottt at 7 pts = cell2mat(vertcat(Z{:}));