I have a need to calculate a 10-interval vs x-interval moving average.
Without totaling the last '10' measurements and dividing by 10 to get an
average and then comparing it to, say, '13' by totaling the last 13 and
dividing by 13, how can I make the calculations vary by the '# of intervals'?
For example, if I want to average the high temperatures from Jan 1-Dec 31, I
have 365 intervals. If I want to compare the 10 day average vs a 13 day
average I can establish the formula pretty easy for the SPECIFIC number of
days. I want to vary the # days, in this example, so I can see if I can spot
trends in the data.
So how do I do the GENERAL case of x-intervals?
TIA