Add increasing values within an array

Hello, I have the following problem:

I get data of the angle of rotation of a screwdriver. Within a screw joint, the angle of rotation is reset to zero at a point in time. This can happen any number of times during a pass. Example:

1°,5°,10°,12°,1°,5°,10°,12°,1°,5°,10°,12°. The numbers are only exemplary.

I would like to merge the values now to a continuous data series. At the moment I have this code:

I hope I was able to describe the problem understandably. Many thanks

clear; 
w=[1;2;3;1;2;3;1;2;3]; % Example Data 

 W=[];                 
for n=1:1:length(w) 
       
   if n==1
      
      W(n)= 0;          % 0 corresponds to: angle not reset 
      
  elseif n==max(length(w))
      
      W(n)= 0; 
     
  elseif w(n)== w(n+1)
      
      W(n)=0;  
           
  elseif w(n)>w(n-1)  
    
      W(n)=0; 

   elseif abs(w(n)-w(n-1))<-2
   
      W(n)=0 

   elseif w(n)<w(n-1)   % 1 corresponds to: Angle reset
      
      W(n)=1;
 
   end
  

end

[KALYAN ACHARJYA]

What would be expected output in this case w=[1;2;3;1;2;3;1;2;3]; example?

[Star Strider]

Please describe the desired output for a specific input, and any rules that might govern getting that output.

[Ole Braunholz]

The Output should be: [1,2,3,4,5,6,7,8,9]

[Star Strider]

I still do not understand.

Answer 1

[Voss]

 w=[1;2;3;1;2;3;1;2;3];
 
 w_new = zeros(size(w));
 w_new(1) = w(1);
 offset = 0;
 for ii = 2:numel(w)
     if w(ii) < w(ii-1)
         offset = w_new(ii-1);
     end
     w_new(ii) = w(ii)+offset;
 end
 w_new

w_new = 9×1

1 2 3 4 5 6 7 8 9

[Ole Braunholz]

Perfect! Thanks a lot :)

[Voss]

You're welcome!