Plotting a table with text inside

Hello

I am trying to plot a table with specific sizes, the resulted graph is either pcolor or contourf, but I require additional information to be shown in the field alongside with specified axis range and intervals.

the code I am using is of the form

   xb = [3:1:13]; 
    yb=[0.5:0.5:5.5]; 

    data=[0,0,0,0,0,0,0,0,0,0,0;
        0,49,73,85,86,83,78,82,67,63,59;
        54,136,193,205,196,182,167,153,142,132,123;
        106,265,347,347,322,294,265,244,224,207,193;
        175,429,522,499,457,412,372,337,312,288,267;
        262,600,600,600,600,540,484,442,399,367,340;
        0,0,0,0,0,0,0,0,0,0,0;
        0,0,0,0,0,0,0,0,0,0,0;
        0,0,0,0,0,0,0,0,0,0,0;
        0,0,0,0,0,0,0,0,0,0,0;
        0,0,0,0,0,0,0,0,0,0,0;]

    % analysis
    bins=[11,11];
    n =hist3(data,bins);

    plotting
    figure
    pcolor(xb,yb,data),colorbar

I would like to replicate and insert the values as shown in figure 1 to the second figure.

Is there a way to import my data so as to be shown in the final figure as numbers on top of the color?

I found a very useful script in the exchange section although unfortunately it does not completely suits the figure output I want since it includes values that I wish not to be shown. but it may be useful to others http://uk.mathworks.com/matlabcentral/fileexchange/15877-heat-maps-with-text

thank you in advance

Answer 1

[Geoff Hayes]

George - a quick way to get text in (roughly) the centre of each square is to use the text function. Just append the following code to the end of your above code

 % deltas for each x and y coordinate
 dx = 1;
 dy = 0.5;

 % loop through each row of xb and yb
 for k=1:size(xb,2)
    for m=1:size(yb,2)
        % add the value from data in roughly the centre of the square
        text(xb(k)+ dx/2,yb(m)+dy/2,num2str(data(m,k)));
    end
 end

Running the above code will produce an image similar to what you have attached above (though it will be upside down). Try it and see what happens!

[George]

Thank you very much, it works with some modifications, although I ll find a way to adjust it to pcolor, since as Image Analyst said it removes only row.

Thank you

[Image Analyst]

A short illustration:

m = magic(3); % Make a 3-by-3 array.
pcolor(m); % Attempt to display the 3-by-3 array.
title('Only 2 by 2 array shown instead of 3 by 3');

Answer 2

[Image Analyst]

Use image() or imshow() instead of pcolor(). pcolor() chops off the last row and last column. Then use text() like Geoff shows.

[Image Analyst]

The application reminds me of the color frequency image: http://www.mathworks.com/matlabcentral/fileexchange/28164-color-frequency-image