Plotting elements corresponding to a matrix

I have a matrix as shown below.

NaN 5.0000 5.0000 6.0000 6.0000 7.0000 7.0000

0.2000 26.0000 27.3000 56.0000 63.0000 32.0000 49.0000

0.4000 26.8300 30.0000 59.0000 66.0000 38.0000 51.0000

0.6000 29.8300 34.0000 61.0000 71.0000 41.0000 54.0000

0.8000 31.5200 35.0000 65.0000 74.0000 43.0000 52.0000

1.0000 33.0000 37.0000 67.0000 79.5000 48.0000 47.0000

1.2000 34.3700 39.0000 69.0000 81.2000 50.0000 45.0000

1.4000 36.3700 40.0000 72.0000 84.0000 52.0000 42.0000

The first column corresponds to the time and first row corresponds to name of object. Under the objects name, the corresponding X and Y coordinates are shown in columns. Can anyone give me an idea on how to plot all objects together across time?

[madhan ravi]

What?? You have seven columns and 8 rows . What’s is x & y here??

[Hari krishnan]

The first column is time.

The first row contains the name of object(eg: 5, 6, 7)

The rows down to the number's in first row are X and Y coordinates

[Raj]

You want to plot Y versus X for each object or both X and Y versus time for each object or you are looking for a 3 dimensional plot here?

[Hari krishnan]

I want to plot X and Y against each other with the time beeing displayed as a title. It's a 2D plot

Answer 1

[Raj]

If I understand your problem statement correctly, your code should look something like this:

A=[NaN    5.0000    5.0000    6.0000    6.0000    7.0000     7.0000
    0.2000   26.0000   27.3000   56.0000   63.0000   32.0000   49.0000
    0.4000   26.8300   30.0000   59.0000   66.0000   38.0000   51.0000
    0.6000   29.8300   34.0000   61.0000   71.0000   41.0000   54.0000
    0.8000   31.5200   35.0000   65.0000   74.0000   43.0000   52.0000
    1.0000   33.0000   37.0000   67.0000   79.5000   48.0000   47.0000
    1.2000   34.3700   39.0000   69.0000   81.2000   50.0000   45.0000
    1.4000   36.3700   40.0000   72.0000   84.0000   52.0000   42.0000];

X1=zeros(7,1); % pre define arrays
Y1=zeros(7,1);
for j=2:2:6
for i=2:8
    X1(i-1,1)=A(i,j);
    Y1(i-1,1)=A(i,j+1);
end
hold all
grid on
plot(X1,Y1)
title('time=0.2;0.4;0.6;0.8;1.0;1.2;1.4') % Display time as title
if j==6 % Put legend at the end
    legend('object5Y vs Object5X','object6Y vs Object6X','object7Y vs Object7X')
end
end

[Hari krishnan]

@Raj, Thank you very much.