Cell matrix

Hi,

I have matrix of size 6x6. And I have numbers and text in it. How can I write zero "0" only from row 3 to 6 and from column 1 to 4. I have this code:

UserData.matrix=cell(6,6);
for i=3:6
     for j=1:4
         UserData.matrix{i,j}='0';
     end;
 end;

But I got error:"??? Error using ==> mupadmex Error in MuPAD command: Invalid index [list];

during evaluation of 'matchNonSingletonLHS'"

Can anybody help my?

Answer 1

[Thomas]

I think you need to do..

UserData.matrix(i,j)={'0'};  % notice where we have parenthesis (indexing) and curly braces for the values

E.g.

% define a cell (6x6)

a={'1' '2' '3' 'hi' '5' '6'; '2' '3' '4' '5' '6' 'the';'1' '2' '3' 'hi' '5' 'new';'1' '2' '3' 'hi' '5' 'world';'1' '2' '3' 'hi' '5' 'welcome';'Where' '2' '3' 'hi' '5' '6';}

a(3:6,1:4)={'0'}    % no need of loop

Answer 2

[Jan]

The posted code and the error message do not match. There is no index "list" in the code. Please read the error message again to find out, which line causes the problem. Using the debugger is recommended also:

dbstop if error

Then Matlab stops as soon as the error occurs and you can inspect the current values.