use of different time windows and time shift

Hi All,

I have a problem in implementaion of for loop.

I have data in two coloumn: (a) Number of hours (b) parameter variation

I want to see teh change of paramter for diffrent time windows and diffrent time shifts and then use the output in an equation For exmaple, at first stage i want to calcualte paramter for 1 hour time window with a shift of 1 hour. then two hour time window with a shift of 1 hour, so on and so far.

then i want to calculate change in 4 hour with a time shift of 2 hour or three hours or 4 hours and so on ...

b=((u-(r).*(dt)./std

here u is the sum of enetires in each time window, r is a fix value say 0.33 ... dt is the length of tim window (2 hours or 3 or 4) and std is also fixed value say 0.5

I have to calculate the value of b for different timw windows and diffrent time shifts. (a raw data attached)

Answer 1

[Walter Roberson]

c = cumsum([0,data]) ;

Then for window dt with shift s

(c(dt+1:s:end) - c(1:s:end-dt)). * dt .* (r/std)

does all the slots at the same time.

[aa]

how can i save the ooutput accross the particular value

[Walter Roberson]

cell array. Your different dt and different shift are going to result in different sizes of outputs, so use a cell array to store them.

You would probably not write the results to a file because of the different sizes of results.

I do not know what you are going to do with the results that could be meaningful with the different array sizes.

[aa]

i am trying to work on the code you proposed but it did not work. May you please used the field i attached here and the calculate the outpout.