MATLAB plotting error

Hi,

I have 3 data to plot. the first data is a 2 dimensional 120x201 matrix(the name of the matrix is H and it contains x+iy types datas) I'd like to plot the datas in 3D. I used the following code

x=abs(H(:,:)) y=1:201; z=1:121; plot(x,y,z)

but it doesn't draw it, it gives this error : ??? Error using ==> plot Data must be a single matrix Y or a list of pairs X,Y

how can I solve the problem?

Answer 1

[Walter Roberson]

You need to use plot3() to plot 3D data.

However, what I would suggest you use in your situation is:

surf(abs(H))

[Prajakta Patil]

Simple WSN Animator2 Author: Amburose Sekar.S E-mail: [e-mail] Future Work---Full supported WSN toolbox using parrallel computing

clear all;
close all;
clc;
%creation of nodes

     nr_fr=10;
     frames = moviein(nr_fr); 
     N=1000;
     Color='b';

Totalnodes='10';  % Total Numbr of Nodes
n11=str2num(Totalnodes);
%%distance of nodes
min1=20;
max1=120;
for i1=1:n11
    if i1==1 
        node(i1,:)=cat(2,i1+1:n11,n11);
    else   
        node(i1,:)=floor(n11*rand(1,n11))+1;
    end
end   

o1 = floor(min1 + (max1-min1).*rand(1,n11));
o2 = floor(min1 + (max1-min1).*rand(1,n11));
%intiator

oint1=10;
oint2=10;

figure(1)

   for i=1:400%coverage range

    cla;   

   plot(oint1,oint2,'*','LineWidth',1,...
                'MarkerEdgeColor','k',...
                'MarkerFaceColor','y',...
                'MarkerSize',12);
    text(oint1,oint2,'intiator','FontSize',8);          

     axis([min1-30 max1+30 min1-30 max1+30]) 
    hold on

int=[1 3 4 5 7 8 9 10];
%axis([0 100 0 100])
%KGC

okgc1=40;
okgc2=40;

plot(okgc1,okgc2,'o','LineWidth',1,...
              'MarkerEdgeColor','k',...
              'MarkerFaceColor','r',...
              'MarkerSize',16);

     text(okgc1,okgc2,'CH','FontSize',8);        
    hold on

         hold on
        plot(o1,o2,'^','LineWidth',1,...
                'MarkerEdgeColor','k',...
                'MarkerFaceColor','y',...
                'MarkerSize',12);

         for j=1:n11     
            text(o1(j),o2(j),int2str(j),'FontSize',12);
         end    
       hold on

     plot3(i,[oint1 okgc1],[oint2 okgc2],'b');  

    d=sqrt((oint1-okgc1)^2+(oint2-okgc2)^2);

      d2=max(sqrt((o1-okgc1).^2+(o2-okgc2).^2));

    k=d;
    %k=40;  % find k value
    if i>k

      for j=1:numel(int)

          plot3(i-k,[okgc1 o1(int(j))],[okgc2 o2(int(j))],'r')  
      end

       k2=d2+d;   %find k2 value

      if i>k2

         for j=1:numel(int)
                 plot(i-k2,[o1(int(j)) okgc1],[o2(int(j)) okgc2],'k')  
         end 

      end    

    end

    if i>=(2*d2+d)

    break;
    end

           hold on

           frames(:, i) = getframe;

   end

      save frames

      load frames
      figure(2)
      movie(frames,1,60,[1 2 0 100])

I've tried using plot function it says

Error using plot
Data must be a single matrix Y or a list of pairs X,Y.

Error in main (line 93)
   plot(i,[oint1 okgc1],[oint2 okgc2],'b');

then i tried using pliot3, it says

Error using plot3
Vectors must be the same length.

Error in main (line 93)
   plot3(i,[oint1 okgc1],[oint2 okgc2],'b');

Answer 2

[Walter Roberson]

plot3([i i], [oint1 okgc1], [oint2 okgc2], 'b');