st: inconsistent behavior of -ds-

[Kit Baum <baum@bc.edu>]

Caleb  said

To illustrate what appears to be inconsistent behavior of -ds-, consider
this dataset with 9 string variables:

. desc

Contains data from uniondemoc82-3.dta
  obs:           180
 vars:            10
 size:        40,500 (99.9% of memory free)
------------------------------------------------------------------------ 
-------
              storage  display     value
variable name   type   format      label      variable label
------------------------------------------------------------------------ 
-------
union           str80  %80s
id              int    %8.0g
pres1           str20  %20s
treas1          str17  %17s
sect1           str20  %20s
sect2           str16  %16s
st1             str20  %20s
st2             str16  %16s
st3             str11  %11s
vp1             str19  %19s

. ds
union   id      pres1   treas1  sect1   sect2   st1     st2     st3
vp1

. ds , has(type string)
union   pres1   treas1  sect1   sect2   st1     st2     st3     vp1

. ds, has(type 2/8)

. ds , has(type 2/62)
pres1   treas1  sect1   sect2   st1     st2     st3     vp1

. ds , has(type 2/11)
st3



Looks perfectly consistent with -help ds- to me. ds without arguments  
-> all variables, ok. ds with type string, all but id, ok. has(type  
2/8) is shorthand for str2,...str8, of which you have none, ok.  has 
(type 2/62) includes all string variables except union, ok. has(type  
2/11) includes only st3, ok. So far ds appears to be batting 1.000.  
What is inconsistent here?

Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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