Re: Recode

[pohaku]

Ben Pfaff wrote:
> 
> On Wed, Jan 09, 2013 at 09:22:12AM -0800, pohaku wrote:
>> 
>> In recode you use (num1 thru num2 = ?). But, suppose you are recoding
>> continuous data, then it is likely that num2 of one code is num1 of next.
>> Example recoding student GPA
>> 
>> (2.222 thru 2.555 = C)
>> (2.555 thru 3.000 = B)
>> 
>> the question is -- is the logic of the recode 
>> 
>> (2.222<= X <2.555 =C)
>> (2.555<=X  <3.000 = B)
> 
> It's 2.222 <= x <= 2.555 becomes C, 2.555 < x <= 3.000 becomes B.
> 
> to be clear... the firs recode is inclusive on upper and lower end of
> range and successive recodes are exclusive and inclusive
> (2.222<= X <=2.555 =C)
> (2.555 < X  =< 3.000 = B)
> (3.000 < X  =< 4.000 = A)
> (4.000 < X  =< 4.200 = A+)
> (4.200 < X <= highest =A++)
> 
> is this the logic above? for real/continuous data the boundaries are
> important. all the documentation is more or less categorical or discrete
> in nature thus this boundary issue doesn't come up. just that i am using
> PSPP for first time in intro stats course and chapter 2 is qualitative
> descriptive stats and recoding of continuous to categorical is rather
> essential to create a meaningful frequency distribution table with a
> reasonable number of rows.
> 
> 
> 
> 
>> there is no clarify in the documentation about the end points being
>> strictly
>> less than or less than-equal.
> 
> The use of square brackets in the documentation is supposed to indicate
> that the end points are included, but I see now that this is not as
> clear as it could be.
> 
> _______________________________________________
> Pspp-users mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/pspp-users
> 
> 

-- 
View this message in context: 
http://old.nabble.com/Recode-tp34879175p34879502.html
Sent from the Gnu - PSPP - Users mailing list archive at Nabble.com.