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Posted: **Sun Dec 30, 2012 5:07 pm**

I need to write an if statement that compares if some series are identical, but I am having some troubles with series that contain missing values. What I would like to write is this

Code: Select all

!error=0
for %s {%series}
	'If all observations are identical in the two series (irrespective of whether those identical observations are missing or not)
	if {%s}<>_{%s} then 
		!error=1
	endif
next

but that returns an error whenever a series contains a missing value. What to do?

Posted: **Mon Dec 31, 2012 2:37 am**

@eqna command does what you want, but you may need few more steps:

Code: Select all

...
series comp = @eqna(y1,y2)
 if @min(comp)=0 then
  !error = 1
 endif
...

Posted: **Mon Dec 31, 2012 3:18 am**

Thank you! I tried using @eqna() directly in the if statement without success. I guess it only works on one observation at a time.

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Comparing series with missing values

Comparing series with missing values

Re: Comparing series with missing values

Re: Comparing series with missing values