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Autocorrelation and heteroskedasticity in Panel Data

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Thanks for your answer,

I have workfile mentioned below. Durbin-watson stat is near zero. That means there is Heteroscedastisity here. What can I do to handle Heteroscedastisity? is it enough to Choos "white cross- section" in "Coef covariance method " ?

Thank you so much



Autocorrelation and heteroskedasticity in Panel Data

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white diagonal means correct both cross-sections and within period ?


Autocorrelation and heteroskedasticity in Panel Data

Autocorrelation and heteroskedasticity in Panel Data

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thank you very much. that was very helpful.
but now i have another question.
"Ignoring cross-sectional dependence in estimation can have serious consequences, with unaccounted for residual dependence resulting in estimator efficiency loss and invalid test statistics."
what should I do, wenn I have cross-section Dependance in my Panel data ?
in EViews Help just says how can we test it. But did not say how can we solve it.

Thanks a lot


Position of a textbox

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Hi

There is a options control to put a text box above a graph. To put the textbox to the left "al" can be used, and to the right "ar". See code and graph 1.

However, in my opinion, the textbox places too far to the right when using "al" (and vice versa).

One suggestion is that the textbox is placed in the left-hand of the scale when using "al" (or a new "options control"). The same with "ar" but vice versa. See graph 2.

If that isn't possible another suggestion that the user could indicate which corner of the textbox the virtual coordinates are linked to. The manual says, "To place text within a graph, you can use explicit coordinates to specify the position of the upper left corner of the text". If the user could choose between

upper left corner (default)
upper right corner
lower left corner
lower right corner

it would be great

Regards Johan

Code:
WfCreate(page=a) a 2000 2010
Series x=(@rnd+1)*100
Graph g1.line x
g1.axis dual
%t1 = "Textposition with\roptions control " + @Chr(34) + "al"+ @Chr(34)
%t2 = "Textposition with\roptions control " + @Chr(34) + "ar"+ @Chr(34)
g1.AddText(al,x) {%t1}
g1.AddText(ar,x) {%t2}
Show g1


Graph 1
g1.gif


Graph 2
g2.gif



Moving statistics functions in models

Kalman filter and NAIRU

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I took it from here viewtopic.php?f=4&t=4366.

I now tried to estimate without fixing the value of the NAIRU variance and then for some countries, it works (with my previously defined state and signal equations) but for some countries, it does not work. It gives NA-s.

Also, there is a big difference when I use EViews legacy for estimating or for example, BFGSS.

Using my data, what do You consider to be the most relevant for estimation? As EViews legacy gives the most logical results, it seems that this is the right one but I am not sure.


Get axis range from graph object

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Thanks! Could you also tell me how the ranges are calculated? I'd like to know them before I plot the data.



Color bars in bar chart

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I use a panel within which I sample at two specific periods. Furthermore, I restrict my sample to a couple of cross sections and plot individual barcharts.

How can I set different colors for the filling of the bars for each of the two periods?


Kalman filter and NAIRU

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This is a nonlinear estimation, different starting values and different algorithms converge to different places or may not converge at all. In general, if different approaches give different values you should choose the one with the highest log-likelihood.


Get axis range from graph object

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Unfortunately that is a proprietary algorithm.


Autocorrelation and heteroskedasticity in Panel Data

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Hi Gareth,
We have clustering in both cross-section and in time. We use yearly time-dummies to fix the time-clustering. Would you recommend White Period to fix cross-section clustering?
Thanks in advance.


Autocorrelation and heteroskedasticity in Panel Data

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I do not give econometric advice


SVAR

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Hi
A - am using eviews 10 and am doing SVAR with 5 variables and I want to make sure that am doing the right process:
1 - select VAR
2 - use proc and estimate structural factorization and I impose restriction on B to be diagonal and on A I impose three more restriction on the lower triangular since I only to impose restriction on the contemporaneous restriction and no restriction on lags
3 - for IR I choose structural decomposition
4 - VD also I select structural decomposition

B- how I can change the analytic in IR from 68% error band?
C- how I can do the same process in A by using syntax?

thanks


Program for Pooled Estimation

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Greetings All,
I am kinda new to Eviews. I am learning how to do pooled time-series cross-section estimation, but I'd like to write programs for that. I have written some programs for simple regressions. However, I have not seen any write-up on how to write a code for pooled estimation. Any help putting me on the right track will be appreciated.
Nahid



Program for Pooled Estimation

Program for Pooled Estimation

Concept of SSR of a VAR

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What I'm hinting at is that there are other available metrics for selecting the "best" VAR. If you look at the bottom of a VAR's estimation output you'll find a variety of summary statistics for the VAR as a whole.


Changing workfile range

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Hello everyone,

I was wondering if there's any way to change the range of data from the workfile read by eviews without having to open a new window and go through the process of importing the file again. For example, if I imported an excel file but eventually added another variable to it and would now like eviews update and read that extra variable (be extending the range of cells it reads), is that possible without having to import the whole file again?

Thank you!


How to specify Maximum Likelihood

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Hey
when i estimate the LOGl, i have this error message: log of no positive number .

What can i do to solve this problem ?
thanks


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