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Posted: **Tue Apr 21, 2009 12:41 pm**

greetings everyone!

i am trying to do a rolling window static forecast out of a simple ECM model but i cannot manage to obtain the complete forecast: that is when i look in the forecast output (wtifore) i only get the results for the last iteration of the loop. here's the code

scalar obs=5490
scalar window= 500

for !i = window to obs-window

smpl !i-window+1 !i
equation prova_ecm
prova_ecm.ls d(wti) c d(wti_f3) u(-1)

smpl !i+1 !i+window
prova_ecm.fit wtifore

next

smpl @all

i know i should create something to contain the forecasted values after each iteration to avoid overwriting them, but i just can't figure out how. can anyone help me?

tx in advance [edit: i'll attach also the wf]

Posted: **Fri May 01, 2009 3:10 am**

Try this way:

Code: Select all

scalar obs=5490
scalar window= 500
matrix(window,obs-2*window+1) results

for !i = window to obs-window

smpl !i-window+1 !i
equation prova_ecm
prova_ecm.ls d(wti) c d(wti_f3) u(-1)

sample s !i+1 !i+window
prova_ecm.fit wtifore
stom(wtifore,rvector,s)
colplace(results,rvector,!i-window+1)
delete s rvector

next

smpl @all

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