Error using handle.handle/set

Hello, I would like to know while when executing this code:

 N=4;                                                    %  # of data types, hence legend entries
 Data = randi(N,30,30);                                  % generate fake data
 imagesc(Data)                                           % image it
 cmap = jet(N);                                          % assigen colormap
 colormap(cmap)
 hold on
 L = line(ones(N),ones(N));                              % generate line 
 set(L,{'color'},mat2cell(cmap,ones(1,N),3));            % set the colors according to cmap
 legend('A','B','C','D')                                 % add as many legend entries as data

I obtain de following error:

Error using handle.handle/set Invalid or deleted object.

Error in test (line 8) set(L,{'color'},mat2cell(cmap,ones(1,N),3)); % set the colors according to cmap

Thank you for your help

Answer 1

[Jos (10584)]

Your does work properly here (although it doesn't show anything useful …)

Did you try to use the debugger? What is the contents of L when the error occurs?