[R] Forecast

[Petr PIKAL]

Hi

r-help-bounces at r-project.org napsal dne 11.03.2010 11:51:19:

> 
> Hi Patrick,
> Sorry man the forecasted values i have given wrong ........
> once again see my question and please give me the answer.
> 
> sample report data that i want to forecast
> 
> quarter     quarter_index     Revenue 
> 2007 Q1       1                  $3,856,799
> 2007 Q2       2                  $4,243,328
> 2007 Q3       3                  $4,930,369
> 2007 Q4       4                  $5,443,579
> 2008 Q1       5                  $5,164,830
> 2008 Q2       6                  $5,104,413
> 2008 Q3       7                  $5,713,240
> 2008 Q4       8                  $6,509,331
> 2009 Q1       9                  $6,271,951
> 2009 Q2       10                $6,657,190
> 2009 Q3       11                $6,979,821
> 2009 Q4       12                $7,581,619
> 
> forecasted report for the year 2010
> 
> quarter          Revenue              Revenue Predictor
> 2007 Q1         $3,856,799           $4,032,525
> 2007 Q2         $4,243,328           $4,335,194
> 2007 Q3         $4,930,369           $4,637,864
> 2007 Q4         $5,443,579           $4,940,533
> 2008 Q1         $5,164,830           $5,243,202
> 2008 Q2         $5,104,413           $5,545,871
> 2008 Q3         $5,713,240           $5,848,540
> 2008 Q4         $6,509,331           $6,151,210
> 2009 Q1         $6,271,951           $6,453,879
> 2009 Q2         $6,657,190           $6,756,548
> 2009 Q3         $6,979,821           $7,059,217
> 2009 Q4         $7,581,619           $7,361,886
> 2010 Q1                                   $7,664,555
> 2010 Q2                                   $7,967,225
> 2010 Q3                                   $8,269,894
> 2010 Q4                                   $8,572,563
> 
> This is the forecasted report that i get using the reporting tool 
cognos(BI
> Reporting Tool).
> is this is possible with the R project.

Yes

> If possible can u please tell me the way.

?arima

Regards
Petr

> 
> 
> Thanks in advance
> chinna. 
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