Is there a solver tool?

[karinat1045]

Hello everyone, I am looking for a solver program like the excel's solver. I need to find a rate that makes a difference equal to zero, is a cash flow with terminal value that needs to be equal to a number.
A program, an add-in or a command would be very appropiate.

Thanks a lot!
Karina

[javiersan]

Have a look at this:
http://forums.eviews.com/viewtopic.php?f=23&t=12174

[karinat1045]

I tried with the add-in irrval, but i could not programmed it. Does anybody knows if i can code an add-in? Or how can i use it in a loop? Thanks

[dagfinnrime]

Hi

I too failed to manage to use the command-line version of irrval. Tried both the global command, and the series version.

Irrval(series=«seriesname»)
Irrval(«seriesname»)
Irrval(seriesname)
(And with versions like scalar test = …. Any of the above).
Seriesname.irrval(results)

Since the menu -alternative is working I guess all that is needed is an update of documentation.

Dagfinn

[EViews Matt]

Hello,

Take a look at EViews' optimize command, which is the general purpose command for user-defined optimization. It requires knowledge of EViews programming to use, but it's very flexible once understood.

[trubador]

Hi

I too failed to manage to use the command-line version of irrval. Tried both the global command, and the series version.

Irrval(series=«seriesname»)
Irrval(«seriesname»)
Irrval(seriesname)
(And with versions like scalar test = …. Any of the above).
Seriesname.irrval(results)

Since the menu -alternative is working I guess all that is needed is an update of documentation.

Dagfinn

Yes, the problem is due to output argument. Use "result" instead of "results" when calling the add-in from the command line and it should be fine. Please let me know if the problem persists.

[trubador]

I tried with the add-in irrval, but i could not programmed it. Does anybody knows if i can code an add-in? Or how can i use it in a loop? Thanks

Each add-in comes with the help file, where author explains its use in detail. You can find the document in the add-in's folder-> C:\Users\...\Documents\EViews Addins\irrval