Sateflow: Indexing an array of size 1

Hi,

I need to index an array that can be of size 1 to x. Indexing in gerneral is no issue, as long as the size of the array is >1 (e.g. using A[x]). But as soon as the array size is 1 I get the following error for a transition check:

[i == 0 && A[i] >= B[i]]

Array dimension mismatch for data A.

Size of a is defined empty.

Anyone an idea for a generic approach?

Thanks!

Answer 1

[Prateekshya]

Hello Maciej,

The error you are getting is due to invalid indexing. MATLAB follows 1-based indexing i.e. the first index is 1. Here is an example to deal with arrays in MATLAB:

% Example arrays A and B
A = [5]; % Can be of size 1 to x
B = [3]; % Can be of size 1 to x

% Determine the size of the array
n = numel(A); % Get the number of elements in A

% Initialize a variable to store the result
result = false;

% Loop through the array with safe indexing
for i = 1:n
    % Check the condition with safe indexing
    if (i == 1) && (A(i) >= B(i))
        result = true;
        break; % Exit the loop if condition is met
    end
end

% Display the result
if result
    disp('Condition met: A[i] >= B[i] for i == 1');
else
    disp('Condition not met.');
end

I hope this resolves your query.