Search found 90 matches

by NicolasR
Tue Jan 13, 2015 1:51 pm
Forum: Add-in Support
Topic: Spectral Analysis*
Replies: 31
Views: 54653

Re: Spectral Analysis*

The version 2.0 of the spectral analysis add-in is now available. It contains tests for detecting periodic components, white noise and Gaussian white noise, also it performs an automatic procedure for extracting cycles of a time series, named significant pass filter (SPF). The add-in could also be u...
by NicolasR
Mon Nov 10, 2014 11:39 am
Forum: Program Repository
Topic: Determination of deterministic regressors (ADF)
Replies: 0
Views: 17603

Determination of deterministic regressors (ADF)

Hi, The code below shows a way to perform the Augmented Dickey-Fuller test and to detect deterministic components in a series. It is based on Enders, W. (2008). Applied econometric time series. John Wiley & Sons. As the author mention no procedure can be expected to work well if it is used in a ...
by NicolasR
Tue Sep 16, 2014 12:10 pm
Forum: Econometric Discussions
Topic: syntax error in specifying state space model
Replies: 1
Views: 2979

Re: syntax error in specifying state space model

Hi, You have two typos, @ename e1 @ename e2 @evar var(e1)=exp(c(4)) @evar var(e2)=exp(c(5)) @signal ipg_norm = c(6)*sv1+e1 ' you wrote the state variable as a lead of orden one,this can not be done @state sv1 = c(1)*sv1(-1) + c(2)*sv2(-1) + c(3)*sv3(-1)+e2 @state sv2 = sv1(-1) @state sv3 = sv2(-1) '...
by NicolasR
Sun Sep 14, 2014 2:31 pm
Forum: Data Manipulation
Topic: 3D graphs
Replies: 7
Views: 13127

3D graphs

Good afternoon,

Is there a way to make three-dimensional graphs in Eviews?

Thanks!
by NicolasR
Wed Aug 13, 2014 2:45 pm
Forum: Add-in Support
Topic: Spectral Analysis*
Replies: 31
Views: 54653

Re: Spectral Analysis*

The Hodrick Prescott filter is a low pass filter, that is, it preserves the low frequency components in the spectrum (long run). Therefore, you can use the estimated spectrum of your series to see if there is any significant peak at the low frequency components, if there is not, the smoothed series ...
by NicolasR
Fri May 16, 2014 10:13 am
Forum: Econometric Discussions
Topic: When to use VAR/VECM
Replies: 2
Views: 8359

Re: When to use VAR/VECM

Hi, You should use VECM if 1) your variables are nonstationary and 2) you find a common trend between the variables (cointegration). If your variables are nonstationary and you transform them to became stationary (diferences or subtracting trends) without doing a cointegration test you might be omit...
by NicolasR
Thu Apr 17, 2014 10:19 am
Forum: Econometric Discussions
Topic: Potential output, the Clark model and State Space Models
Replies: 11
Views: 14940

Re: Potential output, the Clark model and State Space Models

Hi, I belive you should introduce starting values for the state variables, you can do it like this for the Clark model: @signal gdp = trend + cycle @state trend = c(1) + trend(-1) + [var = exp(c(2))] @state cycle = c(3)*cycle(-1) + c(4)*lcycle(-1) + [var = exp(c(5))] @state lcycle = cycle(-1) param ...
by NicolasR
Mon Apr 14, 2014 5:27 pm
Forum: Econometric Discussions
Topic: Impulse Response in Eviews
Replies: 13
Views: 20943

Re: Impulse Response in Eviews

1) In units of the response variable. 2) Cholesky is a matrix decomposition that ensures that your residual covariance matrix could be transformed into a diagonal matrix. The purpose of this Cholesky decomposition is that the impulse to one variable (or their innovations) must be unrelated to the im...
by NicolasR
Wed Apr 09, 2014 7:49 pm
Forum: Econometric Discussions
Topic: Impulse Response in Eviews
Replies: 13
Views: 20943

Re: Impulse Response in Eviews

Hi, When you give an impulse to a system of equations or an equation, you do it through the residuals (also called innovations) which are the non explained part of the depent variable, so they are in units of the impulse variable. Usually the constant of the model is not taken into account in the im...
by NicolasR
Sun Mar 23, 2014 1:55 pm
Forum: Estimation
Topic: near singular matrix
Replies: 1
Views: 2970

Re: near singular matrix

Did you tried different starting values for the coefficients? Maybe the coefficients c(1) to c(5) have a value where the algorithm can not start its iteration.

You can change them in the c vector coeficient.
by NicolasR
Sat Mar 22, 2014 11:16 am
Forum: Estimation
Topic: syntax error
Replies: 4
Views: 5683

Re: syntax error

I did not know of the existence of the formula object, thanks Glenn.
by NicolasR
Sat Mar 22, 2014 6:46 am
Forum: Estimation
Topic: syntax error
Replies: 4
Views: 5683

Re: syntax error

Hi, you miss some brackets or put some more, I estimate it like this: ls log(cs/(cs+ls)) - log(cs(-1)/(cs(-1) + ls(-1)))=c(3)*(c(4) - 1) + (c(4) - 1)/(1-c(2))*(log(cs+ls)/1)- (log(cs(-1)+ls(-1)))/1+ (1- c (4))*(log(pk) - log(pk(-1)))- log(py)+log(py(-1)) I think that a simpler way to estimate the mo...
by NicolasR
Wed Mar 19, 2014 9:47 am
Forum: Programming
Topic: multistep forecast vecm
Replies: 10
Views: 9805

Re: multistep forecast vecm

It uses the 400 past values in the sense that you estimate the model with this data, but the forecast are out of sample dynamic.
by NicolasR
Wed Mar 19, 2014 8:18 am
Forum: Programming
Topic: multistep forecast vecm
Replies: 10
Views: 9805

Re: multistep forecast vecm

No, you don´t have to change the value, you can keep it in seven, I said it in the case you wanted more forecasting ahead steps than five. I have a question,are you sure that the cointegration relationship remains across the time window?

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