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Regression Forecasting Template Support Resources

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Regression Forecasting Template Support Resources

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HappyWelcome to the Excel Help Forum dedicated to the Multiple Regression Analysis and Forecasting template by Business Spreadsheets.

Please feel free to post questions, answers and share solutions relating to this template in this forum.

Further support resources for the Multiple Regression Analysis and Forecasting template by Business Spreadsheets include:

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Confused
Regression equations
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If you want to use Cache and not the Multiple regression template, I suggest that you use the formulas and matrix processes required for multiple regression analysis.

Useful information can be found at http://en.wikipedia.org/wiki/Regression_analysis

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Confused
Trouble Forecasting Dependant Variable
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I want to forecast what the dependent variable will be based on several independent variables, given what it has been in the past.  I can't figure out how to do it.  On the input tab, if I leave the last row of the dependent variable blank, it is not predicted on the output tab.  On the output tab, if I set the independent variables to "leave blank" in the forecast table, it doesn't work.  What am I doing wrong?
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Surprised
Forecasting the dependent variable
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To forecast the dependent variable all of the rows should be entered on the Input sheet to run the regression analysis first.

The Output sheet then allows to forecast the dependent variable.  If the forecast method chosen for an independent variable is "Leave blank", this assumes that predictive data will be entered for that variable such as that provided by external sources or analysis. 

Alternatively a forecast method can be chosen such as Linear, Exponential or Polynomial. These methods analyze the historical data trend to forecast the independent variable accordingly.  When all data the forecasts of the independent variables are then used in the regression equation to forecast the dependent variable reflecting the predictive regression relationships.

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Confused
Forecasting the dependent variable
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I am still confused.  Say I 20 complete rows of data - 20 dependent variables and the corresponding independent variables for those 20 data points. 
For the one that I want to predict, I have the values for the independent variables but I don't have the dependent variables.  I want the model to predict what the dependent variable should be.  How do I do that with this tool? 
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Oops
Remove row from Input
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In this case, you should not include the row for which you want to predict in the Input sheet.  Run the regression on observations for which the dependent  variable exists.  Then choose to forecast with the option to Leave blank the independent variables.  Enter the data for the independent variables into the Forecast sheet to obatin the predicted value(s) for the dependent variable.
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Confused
Offshore Outsourcing Services
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