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st: RE: check 2 of 3 variables agree a majority decision captured in4th variable
This sounds best handled as an initial -generate-
followed by a series of -replace ... if ...-.
That is not to rule out the usefulness of -assert-.
Be aware also of -max()- and -cond()-. In the latter
case there is a leisurely tutorial:
SJ-5-3 pr0016 . . Depending on conditions: a tutorial on the cond() function
. . . . . . . . . . . . . . . . . . . . . . . D. Kantor and S. B. Else
Q3/05 SJ 5(3):413--420 (no commands)
tutorial on the cond() function
> I wonder if someone can get me started on how to approach a problem I
> wish to solve. I have searched the archives and not seen
> anything that's
> too similar.
> I have variables var1, var2, var3 & var4. Variables var1 var2 & var3
> are three independent results of a screening test. The independent
> result (ordered categorical) is either normal, borderline,
> mild, mod or
> severe. Variable Var4 is the final result and it is meant to
> be based on
> the majority decision. So if var1 & var3 are borderline for example,
> var4 should be borderline, regardless of var2. Another
> example, if var2
> & var3 are severe, var4 should be severe regardless of var1. Where all
> three differ I would like to check that var4 is the worst of
> var1, var2,
> var3. If I can get started I think I can develop it to check
> for missing
> values, but I am not sure if I should approach this problem with if
> statements or -assert- or something else?
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