Assign special values for some observations in a series

[ecardamone]

Hi,
I have two times series, x1 and x2 dated 1997 to 2013. Both series have negative observations in some periods, that I would like to turn into NA. Is there a simple way to do this? I have tried

Code: Select all

if x1>0 then x1=na else x1=x1 endif

but that doesn't work. I get an error message saying "NA found in matrix in..."

I am using EViews 9.

Thanks for help!

[EViews Gareth]

http://forums.eviews.com/viewtopic.php?f=5&t=3765

[EViews Glenn]

Or to narrow it down further
http://forums.eviews.com/viewtopic.php? ... 765#p12760

[ecardamone]

Thank you very much! @recode worked great.