using stochastic simulation '' Urgent Situation''

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Husseinfr1
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Joined: Thu Feb 04, 2010 4:33 pm

using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 9:12 am

PLEASE an Urgent Situation
Hi, all thank you in advance for help
I am new EViews user (7.2), currently I am working to solve macroeconometric model, which consists of 38 endogenous equations, 16 of which are stochastic while the rest are identities. I want to solve the whole model to test its predictive ability, using stochastic simulation, and I need to use the conventional criteria such as (MAE, RMSE, MAPE, the Theil inequality coefficient), but I could do that, because I do not find how. In the single equation, I can do from the equation widow, where the forecast option is available in that window.
Could you please help me, I am in an urgent situation.
Thank you again
Hussein
Last edited by Husseinfr1 on Wed Sep 26, 2012 10:22 pm, edited 1 time in total.

EViews Gareth
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Re: using stochastic simulation '' Urgent Situation''

Postby EViews Gareth » Tue Sep 25, 2012 9:40 am

There is nothing built in that will show you those values automatically. However there are functions that can calculate them for two series. For example you can type:

Code: Select all

=@rmse(y, y_1)

to show the RMSE between the series Y and the series Y_1.
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Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 10:08 am

EViews Gareth wrote:There is nothing built in that will show you those values automatically. However there are functions that can calculate them for two series. For example you can type:

Code: Select all

=@rmse(y, y_1)

to show the RMSE between the series Y and the series Y_1.

Thank you very much, but what about the rest cretira (MAE , MAPE, the Theil inequality coefficient)
I am very happy and thank you very much for the quick reply.

EViews Gareth
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Re: using stochastic simulation '' Urgent Situation''

Postby EViews Gareth » Tue Sep 25, 2012 10:16 am

@mae, @mape, @theil
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Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 10:29 am

EViews Gareth wrote:@mae, @mape, @theil


Dear Gareth
Thank you again, you provided me a great favor.
Best regards

Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 11:00 am

EViews Gareth wrote:@mae, @mape, @theil

I am so sorry,
but it does not work
Could you please write the full command for me, my data series 1970 2006
the variables are pcer and pcer_0
thank you

EViews Gareth
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Re: using stochastic simulation '' Urgent Situation''

Postby EViews Gareth » Tue Sep 25, 2012 11:03 am

Code: Select all

=@mae(pcer, pcer_0)
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Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 12:25 pm

EViews Gareth wrote:

Code: Select all

=@mae(pcer, pcer_0)

I apologize, it seems that I disturbed you, but I wrote this command at the command window
mapcer=@mae(pcer, pcer_0)
Is it true, if it is incorrect, what is the correct?
Where can I find the result?

EViews Gareth
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Posts: 12298
Joined: Tue Sep 16, 2008 5:38 pm

Re: using stochastic simulation '' Urgent Situation''

Postby EViews Gareth » Tue Sep 25, 2012 12:41 pm

if you wish to store the result in a scalar, called mapcer, then:

Code: Select all

scalar mapcer = @mae(pcer, pcer_0)
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Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 12:54 pm

EViews Gareth wrote:if you wish to store the result in a scalar, called mapcer, then:

Code: Select all

scalar mapcer = @mae(pcer, pcer_0)

Thank you so much Gareth
best regards
Hussein

Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Tue Sep 25, 2012 8:25 pm

EViews Gareth wrote:There is nothing built in that will show you those values automatically. However there are functions that can calculate them for two series. For example you can type:

Code: Select all

=@rmse(y, y_1)

to show the RMSE between the series Y and the series Y_1.

Hi Gareth
Could you please show me how can I calculate the root mean squared percent error rmspe.
thank you inadvance
Hussein

EViews Gareth
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Re: using stochastic simulation '' Urgent Situation''

Postby EViews Gareth » Wed Sep 26, 2012 7:48 am

There is nothing built in to calculate that statistic. You'll have to calculate it manually.
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Husseinfr1
Posts: 11
Joined: Thu Feb 04, 2010 4:33 pm

Re: using stochastic simulation '' Urgent Situation''

Postby Husseinfr1 » Wed Sep 26, 2012 12:42 pm

EViews Gareth wrote:There is nothing built in to calculate that statistic. You'll have to calculate it manually.

Thank you very much Gaerth for your help.
With best regards
Hussein


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