EViews.com

Yes, you can create one SD negative shocks. Just insert the scale factor. For example, -0.31

This thread is about if you are looking for Eviews add-in that implementing a particular procedure or replicating a paper, post your request here.

For example:

You can do this manually

This thread is about the GEVD add-in that estimates a new generalized forecast error variance decomposition method of Lanne and Nyberg (2016).

Could you post the data?

Change the rolling windows parameter. for example, the following command worked for me

window=60 - rolling window parameter

The sample size of time series is too short. So you cannot choose lags greater than 1.

Could describe the data? Or upload data file?

C:\Users\...\Documents\EViews Addins\FAVAR\favar.pdf

the version 9

Did you read the instruction document ? (dyindex.pdf file located in add-in folder)
You cant run the add-in from the VAR. You should open it first from Add-ins menu. Or try command line.

Just insert -2 in the Sign restriction vector box or create sign restriction vector :

Sorry, no.

Try to update the eviews 10 and try update the psvar add-in to the version 2.0. It is not possible to do Granger causality test using the psvar add-in.