# coefficients

1. ### Formula help: Forecast daily sales with multiple variables

Question: I need help creating a formula that will add multiple variables to a daily forecast. Might require VBA. I do not know VBA. Background: Our sales volumes changes based upon multiple variables such as holidays, paydays, and days of the week. We have run regression analysis that...
2. ### Extracting coefficients for a polynomial trend line

I have some data sets I wish to create equations based on (3rd and 4th degree poly for good fit) but can't figure out how. I've tried the solutions suggested here: http://www.mrexcel.com/forum/showthread.php?t=396162&highlight=trendline+coefficients...
3. ### Average with coefficients

I am trying to work out a complicated average. In order to do this i need to multiply each individual cell in a row (B3:E3) by a corresponding row of coefficients (B2:E2) and than divide the sum of these values by the sum of the coefficients (I3). To complicate matters B3 is text and E3 is...

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