Hello,
I have a question regarding how to find an equation for data points that have
disturbances.
For example, I have the following data:
P = 366 measured values
T = 366 measured values
t = [ 1 : 366 ], representing the days of the year (index)
So, at each t (day), we have value of P and corresponding value of T
When drawing P and T vs. t, it shows a continued curve for P with disturbances. These
disturbances are caused by the change of T and it is clear that P is mainly affected
by T, meaning that: P = f ( T )
This figure is shown here:
http://store2.up-00.com/Sep11/VKq30182.jpg
This figure shows P vs. T:
http://store2.up-00.com/Sep11/esZ30295.jpg
My aim is to find this relation between P and T or in another words: P = f ( T )
What I have tried and think so far is first to smooth the curve P and from the smoothed
points and smoothed curve, some function may be established. Then, including the
effect of disturbances (up and down) by some function, may be exponential.
Could you please guide me how can I manipulate this problem to get a final model
P = f ( T ) .
Regards

