Forecast Evaluation Help

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praveen7796
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Joined: Wed Jul 11, 2018 1:03 am

Forecast Evaluation Help

Postby praveen7796 » Fri Jul 13, 2018 4:38 am

I am trying to do a forecast evaluation where the forecast is stored as a series and the observed values are also a series.

I follow the instructions listed here: http://www.eviews.com/help/helpintro.html#page/content/series-Forecast_Evaluation.html, yet I always obtain unusual results.

I am not sure what I am doing wrong. My observed series is titled RETURNSRQ, and the forecast series is titled VOLFORECASTGARCH. The sample range is 2015 to 2018 and i set the training sample to the same( I am not exactly sure about what to set the training sample too.). I filled out this dialog box like this:
dialog box.PNG
dialog box.PNG (15.92 KiB) Viewed 4951 times


This is the result I obtain:
forecast evaluation graph.PNG
forecast evaluation graph.PNG (11.04 KiB) Viewed 4951 times


I expected the graph to look like this:
expected graph.PNG
expected graph.PNG (28.07 KiB) Viewed 4951 times


The statistics that come with the evaluation are also nonsensical.

I am not sure what I am doing wrong. Any help would be greatly appreciated. For some reason I can't attach my workfile.

EViews Gareth
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Re: Forecast Evaluation Help

Postby EViews Gareth » Fri Jul 13, 2018 7:41 am

Forecast evaluation is for evaluation multiple forecasts of the same series. It looks like you are only evaluating a single series. Thus most of the statistics, and the averaging methods are nonsensical.
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praveen7796
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Joined: Wed Jul 11, 2018 1:03 am

Re: Forecast Evaluation Help

Postby praveen7796 » Fri Jul 13, 2018 8:09 am

EViews Gareth wrote:Forecast evaluation is for evaluation multiple forecasts of the same series. It looks like you are only evaluating a single series. Thus most of the statistics, and the averaging methods are nonsensical.


So how do I obtain forecast evaluation statistics like root mean square error? How can I compare between forecast values and real observations?

EViews Gareth
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Re: Forecast Evaluation Help

Postby EViews Gareth » Fri Jul 13, 2018 8:22 am

You can use the forecast evaluation view for that, but don't include an averaging method.
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praveen7796
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Re: Forecast Evaluation Help

Postby praveen7796 » Fri Jul 13, 2018 8:53 am

EViews Gareth wrote:You can use the forecast evaluation view for that, but don't include an averaging method.

I followed your instructions and obtained this:
evaluation.PNG
evaluation.PNG (10.18 KiB) Viewed 4933 times


I don't understand why its not plotting the full evaluation sample.

EViews Gareth
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Re: Forecast Evaluation Help

Postby EViews Gareth » Fri Jul 13, 2018 8:55 am

Hard to say without having the data.
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praveen7796
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Re: Forecast Evaluation Help

Postby praveen7796 » Fri Jul 13, 2018 9:00 am

EViews Gareth wrote:Hard to say without having the data.

Sorry, I thought I had attached it. I have attached it now. Cheers.
Attachments
djia.wf1
(951.71 KiB) Downloaded 179 times

EViews Gareth
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Re: Forecast Evaluation Help

Postby EViews Gareth » Fri Jul 13, 2018 9:08 am

Works as expected for me. Ensure your copy of EViews is up to date.
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Re: Forecast Evaluation Help

Postby EViews Gareth » Fri Jul 13, 2018 9:09 am

2018-07-13_090917.png
2018-07-13_090917.png (28.25 KiB) Viewed 4928 times
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praveen7796
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Re: Forecast Evaluation Help

Postby praveen7796 » Fri Jul 13, 2018 9:32 am

EViews Gareth wrote:2018-07-13_090917.png

I just want to say thanks for all your help. Updating the software did the trick. Sorry for taking up your time.
Cheers.


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