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Hi everyone,
I have a simple but tedious problem to solve and i am starting to feel desperate...

I have lots of times series (annual data from 1900-2011) with lots of #NAs in them. What i need to do is to produce a table with the number of years between observations.
Is there an easy way to do this in eviews? I was thinking about @datediff but, for a start, I don't know how to pick the date value (for the existing observations)!

Any help is very much appreciated,
thanks
Mikela

Something like this:

thanks! i was struggling with cumsum (because it continue to cumulate regardless of the missing values) but with this code was much easier, thanks again!

Hi,

I have time series data for 2001, 2003, 2005, and 2007, which workfile structure type do I select?

I have selected unstructured/undated but it does not seem to be working.

What is the minimum number of observations needed for time series data?

Many Thanks,
Jen

Dated - regular frequency

Frequency - Multi-year (2 year)

Start date: 2001
End date: 2007

Thanks Gareth that really helps.

Do you have to have data at regular intervals, for example could i have 2001, 2003, 2005, 2006, 2007, 2008?

Also what is the minimum number of observations required to run White Heteroskedacity cross terms test?

Many Thanks
Jen

If you want irregularly spaced data, you'll have to create an irregular workfile. You'll have to consult the documentation for more information.


There is never a correct answer to the "how many observations do I need" question.