It would be great if the EViews formula language allow the user to reference object from other pages and workfiles. My suggestion would be to use the same syntax as in the copy command, whereby the following code would work.
Code: Select all
wfcreate(wf=wf1,page=page1) a 2000 2010
series ser1=1
wfcreate(wf=wf2,page=page2) a 2000 2010
series ser2=1
wfcreate a 2000 2010
series ser3=3*wf1::page1\ser1/wf1::page2\ser2
And would yield the same result as this code:
Code: Select all
wfcreate(wf=wf1,page=page1) a 2000 2010
series ser1=1
wfcreate(wf=wf2,page=page2) a 2000 2010
series ser2=1
wfcreate a 2000 2010
copy wf1::page1\ser1
copy wf1::page2\ser2
series ser3=3*ser1/ser2
I am aware that pages with differing frequencies might pose a problem. Some suggestions for how this could be solved would be by (1) always using the default conversion, (2) adding a conversion option to the series command that could contain a list of conversion methods associated with the series in the expression in the order that they appear or (3) only allowing the syntax in case the series had the same frequency as the selected page.
(I have refered to this out elsewhere (
http://forums.eviews.com/viewtopic.php?f=5&t=5864), but it seemed a good idea to post it in its right place.)
