Calling Eviews program from Matlab

[rloc]

I have set up a connection to Eviews from matlab with the following:

hm = actxserver('Eviews.Manager');
ha = hm.GetApplication;

I can successfully run Eviews commands one at a time with, for example,

ha.Run('rets.genr retd? = log(cum_?) - log(cum_?(-1))');

but since the one command at a time surrounded by ha.Run etc was tedious and also precluded local variables, loops and if's, I tried calling an entire Eviews program from Matlab using

ha.Run('run(v) "c:\models\drr\eviews\getretdata.prg"'); The program works fine in Eviews, but I get the following error when the command is invoked from Matlab

??? Error: The RPC server is unavailable.

Question: How do I run a whole Eviews program from Matlab?

PS I have gone the other way and have run Matlab functions from Eviews.

[EViews Steve]

I just tried this using Matlab 7.9.0 (R2009b) and it worked fine for me.

Perhaps it's something in the program? Try running the program from a VBA client like Excel or Word. See if an error appears.

If Excel or Word can call the EViews program but Matlab cannot, then it's an issue with Matlab...

Steve

[rloc]

Thanks Steve. It worked today. I must have had a contamintaed connection yesterday.

Today's question: Is there any documentation about what the various commands (eg GetGroup v. GetGroupEx) do? I have been guessing based on the names, but it would be nice to know options etc.

In particular, I have been using GetGroup to retrieve a Group of series from Eviews to Matlab. In Matlab, it creates a cell array, but it effectively only a matrix of numbers. I lose the dates and the headers. Is there any option to retrieve all Group data including series names and date associated with number. IE what looks like an Eviews Group.

[EViews Steve]

We provide a whitepaper on our website that provides those details.

http://eviews.com/download/whitepapers/ ... mation.pdf

Steve

[EViews Steve]

About the GetGroup call, try this to get the date column:

Code: Select all

app.GetGroup("@date series1 series2", ...

The "@date" value should return the dates you are looking for. Unfortunately, there isn't a way to get the series names (column headers) in the GetGroup output -- however, you can do a Lookup call before calling GetGroup to get the list of names beforehand. Look at the bottom of page 3 of the PDF documentation...

Once you have each name, they should match the output of GetGroup (except for the @date column).

Steve

[eclee]

Hi, All:
I wrote the following script [part] to call EViews (64 bit) from Matlab 2013a (64 bit) four months ago.
It was workable before, but it is failed now. I don't change anything. May anyone help me to solve this problem? Thanks!

Code: Select all

clear all; clc; hm = actxserver('Eviews.Manager') hm = COM.Eviews_Manager h = hm.GetApplication(0) % h = Interface.EViews_1.0_Type_Library.IApplication % EViews 7 % h = Interface.EViews_8.0_Type_Library.IApplication % EViews 8 h.invoke h.Show() h.Run('wfcreate comEV u 4') h.Run('genr x = @obsid')

[Error Messenge]

h = hm.GetApplication(0)

No appropriate method, property, or field GetApplication for class
COM.Eviews_Manager.