using stochastic simulation '' Urgent Situation''
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using stochastic simulation '' Urgent Situation''
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
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.

 Fe ddaethom, fe welon, fe amcangyfrifon
 Posts: 12460
 Joined: Tue Sep 16, 2008 5:38 pm
Re: using stochastic simulation '' Urgent Situation''
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:
to show the RMSE between the series Y and the series Y_1.
Code: Select all
=@rmse(y, y_1)
to show the RMSE between the series Y and the series Y_1.
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 Posts: 11
 Joined: Thu Feb 04, 2010 4:33 pm
Re: using stochastic simulation '' Urgent Situation''
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.

 Fe ddaethom, fe welon, fe amcangyfrifon
 Posts: 12460
 Joined: Tue Sep 16, 2008 5:38 pm
Re: using stochastic simulation '' Urgent Situation''
@mae, @mape, @theil
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 Posts: 11
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Re: using stochastic simulation '' Urgent Situation''
EViews Gareth wrote:@mae, @mape, @theil
Dear Gareth
Thank you again, you provided me a great favor.
Best regards

 Posts: 11
 Joined: Thu Feb 04, 2010 4:33 pm
Re: using stochastic simulation '' Urgent Situation''
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

 Fe ddaethom, fe welon, fe amcangyfrifon
 Posts: 12460
 Joined: Tue Sep 16, 2008 5:38 pm
Re: using stochastic simulation '' Urgent Situation''
Code: Select all
=@mae(pcer, pcer_0)
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Re: using stochastic simulation '' Urgent Situation''
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?

 Fe ddaethom, fe welon, fe amcangyfrifon
 Posts: 12460
 Joined: Tue Sep 16, 2008 5:38 pm
Re: using stochastic simulation '' Urgent Situation''
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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 Posts: 11
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Re: using stochastic simulation '' Urgent Situation''
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

 Posts: 11
 Joined: Thu Feb 04, 2010 4:33 pm
Re: using stochastic simulation '' Urgent Situation''
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

 Fe ddaethom, fe welon, fe amcangyfrifon
 Posts: 12460
 Joined: Tue Sep 16, 2008 5:38 pm
Re: using stochastic simulation '' Urgent Situation''
There is nothing built in to calculate that statistic. You'll have to calculate it manually.
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 Posts: 11
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Re: using stochastic simulation '' Urgent Situation''
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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