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Time series modelling

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :
 

Hi everyone,

I am happy to join this group. I want to know what is rigorous modelling technique for seasonal data having increasing trend. I m using SPSS-winter additive method but MAPE (Mean absolute percentage error) is coming 344. I have tried all models given in this software but MAPE is not coming less than 20. What should I do? Please suggest.. Here is the graph.




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892

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hello,

I am wondering what I need to do to use the time series algorithm on a table that is like this. (part from a table from a relational db)

table is like this:

 

memberid--- joindate --- leavedate

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any help would be appreciated!

 

 


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