Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: RE: RE: problem with describe and r(varlist)


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: problem with describe and r(varlist)
Date   Mon, 27 Nov 2006 00:27:25 -0000

My puzzle is resolved in this way: 

1. [D] describe tells me that I can abbreviate -describe-
by -d-, so I usually do.  

2. However, if I do that and say 

. d, simple 

Stata fires up the program -d- in d.ado on BASE, which 
_ignores_ the -simple- option. 

I am tempted to regard this as a bug until told what 
I am misunderstanding. 

This doesn't affect my advice to Daniel except that 

describe, simple 
foreach x of var * {
 	codebook `x', compact
 	tabulate `x'
}  

is an alternative (more efficient than my previous). 

Nick 
n.j.cox@durham.ac.uk 

Nick Cox
 
> I guess that your line 
> 
> local AlleVariablen = r(varlist) 
> 
> evaluated, not copied. Thus the limit on 
> the length of a string in a string expression
> (see -help limits-) bit you. 
> 
> Actually, I am a bit puzzled, as in my version
> of Stata, 9.2, -describe, simple- does not leave behind
> r(varlist) -- contrary to [D] describe and your example. 
> 
> Anyway, your code can be slimmed down to cut the 
> middle macro: 
> 
> ds 
> foreach x of var * {
> 	codebook `x', compact
> 	tabulate `x'
> }  
> 
> Nick 
> n.j.cox@durham.ac.uk 
> 
> Daniel Becker
>  
> > I am trying to loop over all names of variables in the memory. to  
> > prepare for that, I want to prepare a local that lists all my  
> > variables. I thought that r(varlist) stores them, but, as you see  
> > below, the "descibe, simple" commmand gives me all my 
> variables, it  
> > stores only a subset in r(varlist).
> > 
> > Does anyone know why that happens?
> > 
> > Thanks for any hint,
> > 
> > daniel
> > 
> > 
> > 
> > #### from my do-file
> > 
> > describe, simple;
> > display r(varlist);
> > local AlleVariablen = r(varlist);
> > display "Im local AlleVariablen steht: " "`AlleVariablen'";
> > 
> > foreach x of local AlleVariablen {;
> > codebook `x',compact;
> > tabulate `x';
> > };
> > 
> > 
> > #### stata-output from the log
> >  > describe, simple;
> > res_id       B6           B15          B24          C5_1          
> > E4_sonst     F5_konkret
> > start        B7           B16          B25          C5_2          
> > E5           F6
> > ende        - B8           B16_andere   B26          C5_3          
> > E6           F6_konkret
> > A1           B9_1         B17          C1           D1            
> > E7           F7
> > A2           B9_2         B17_sonst    C2           D1_andere     
> > E8           F7_konkret
> > A2_sonst     B10          B18          C3_1         D2            
> > E9           G1
> > A3           B10_konkret  B18_sonst    C3_2         D3            
> > E10          G2
> > A4           B11          B19          C3_3         D4            
> > E10_andere   G3
> > B1           B11_sonst    B20          C3_4         E1            
> > E11          A1_erstf
> > B2           B12          B20_konkret  C4_1         E1_sonst      
> > F1           A1_zweitf
> > B3           B12_sonst    B21          C4_2         E2           F2
> > B4           B13          B21_sonst    C4_3         E2_konkret   F3
> > B5           B13_mehr     B22          C4_4         E3           F4
> > B5_sonst     B14          B23          C4_5         E4           F5
> > 
> >  display r(varlist);
> > res_id start ende A1 A2 A2_sonst A3 A4 B1 B2 B3 B4 B5 
> B5_sonst B6 B7  
> > B8 B9_1 B9_2 B10 B10_konkret B11 B11_son
> >  > st B12 B12_sonst B13 B13_mehr B14 B15 B16 B16_andere B17 
> > B17_sonst  
> > B18 B18_sonst B19 B20 B20_konkret B21 B2
> >  > 1_sonst B22 B23 B24 B25 B26
> > 
> > #### the variables C1 ... D1 ... etc are missing in r(varlist)

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index