Date: Tue, 14 Feb 2006 14:15:07 +0100
Reply-To: "adel F." <adel_tangi@YAHOO.FR>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "adel F." <adel_tangi@YAHOO.FR>
Subject: Re: Nominal to ordinal
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I think that there is a misunderstood , I do not want to transform a nominal to an ordinal, but SAS gives me a text type, that I can not work with
Gerhard Hellriegel <ghellrieg@T-ONLINE.DE> a écrit :
it's simpel: define a order! It's all the same with numerics: there are
axioms, which define e.g. "natural numbers" (I hope that is the right term
in english). That has nothing to do with "natural" or "god-given". That are
simply rules which lead to some things, also the order of the numbers.
Same u can do with all things. Simply define it. E.g. use the numeric order
of 1, 2, 3, ... in the example below! That has nothing to do with "real
life" or with your experience, it is simply something you define in your
"model". You define, that house < garden < garage < ... - and you have it!
If you say "but house is not less than garden", I can say "yes, it is!
Because it is defined like that!". The only question is: is my model of any
use? For numbers there are many nice things, you can use them for, e.g. you
can count things. What is with the sequence house < garden < garage < ...?
On Tue, 14 Feb 2006 06:42:22 -0500, Jim Groeneveld wrote:
>Neither do I. That is because it is impossible to transform completely
>meaningless category numbers to some kind of ordering. E.g., if you have
>the categories 1=house, 2=garden, 3=garage, 4=street, 5=high in tree,
>6=underground refuge, how would you order those categories? The only
>ordering, if possible at all, would be semantic (well, maybe alphabetic as
>well). But there is no magic numerical algorithm to perform some ordering.
>Regards - Jim.
>Jim Groeneveld, Netherlands
>Statistician, SAS consultant
>My computer can not help you either.
>On Tue, 14 Feb 2006 12:30:07 +0100, adel F. wrote:
>> I do not remember how to transform a variable with values 0,1,2,3 coded
>in a nominal scale, to an ordinal scale .
>> Any help
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