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Hello,

Can anyone help me with this?

I want to separate a series into two classes: large and small. The raw data X run from -3 to 1. If a number is between -0.14 to 0.14, it is considered small, otherwise large.

I wrote series large=recode( X>0.14 or X<-0.14,X,0)
series small=recode(-0.14<X<0.14,X,0)

However, the resulting series aren't correct. Where were my problems?

Many thanks!!

Your large series should be correct, you just need to use the same idea for the small series:

series small = @recode(X<0.14 and x>-0.14,x,0)

Tks a lot, it works now!!