Forecasting
 

Hi!

Let's say I would like to make the forecast based on the averages of all
previous known data.
For example:
I have a day increment in column A and call volume in B. Call volume
oscilates depending on the day of the week but the oscilation is constant
and it repeats it self week after week. So what I want is to forecast the
call volume for the starting week, day by day, by using previous data for
the same day in the week.
Is this senseless? Perhaps there is a better way to forecast upon single
parameter?
BR

Kruno, Croatia