Rainfall Accumulation Event Based

Hello,

I am trying to caluculate the rainfall accumulation for during 'events'. Here is an example of what the rainfall data looks like and what I would like it to output. I have tried methods that use accumarray and cumsum but they tend to only give a total per event, and not it counting up each time.

Any help would be greatly appreciated. Thanks.

Rainfall= [0 1 1 2 0 0 0 0 2 4 5 2 0 0]

Output= [0 1 2 4 0 0 0 0 2 6 11 13 0 0]

Answer 1

[Dyuman Joshi]

%Added values at end points
y = [-6 -8 -10 0 1 1 2 0 0 0 0 2 4 5 2 0 0 3 5 7];
for k=2:numel(y)
    if y(k-1) && y(k)
        y(k)=y(k)+y(k-1);
    end
end
disp(y)

    -6   -14   -24     0     1     2     4     0     0     0     0     2     6    11    13     0     0     3     8    15

[Alexander Osborne]

Perfect, thank you very much