I need to save previous adjacent position of object movement

hello everyone!

I have faced the problem is that i need to save previous adjacent position of object in order to identify the difference of object. Here is my code and i need to save the previous adjacent value of Rx. thanks

%%% Move Rx around the room according to Position vector above %%%%

%%% and measure the received power at Rx %%%%%%%%%%

for xx=1:1:no_of_moves_in_x

for yy=1:1:no_of_moves_in_y

Rx = get_Rx_position(Rx_pos_x(xx), Rx_pos_y(yy));

end

end

Answer 1

[Chunru]

RxPre = [0 0];  % initial position
for xx=1:1:no_of_moves_in_x
    for yy=1:1:no_of_moves_in_y
        Rx = get_Rx_position(Rx_pos_x(xx), Rx_pos_y(yy)); 
        % Do comparison of Rx and RxPre here
        
        RxPre = Rx;
    end 
end

[DAT VUONG]

Thanks for your comment, however, i want to save just only the previously adjacent value of Rx.

[Chunru]

You only have a previous and current value.