Statalist


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

st: RE: Compound quotes problem


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Compound quotes problem
Date   Wed, 9 Apr 2008 21:52:21 +0100

This works. I wouldn't rule out other solutions. 

sysuse auto, clear
tostring rep78, replace
local scatter ""
levels rep78, local(rep78)
foreach r of local rep78 {
local scatter `scatter' (scatter mpg weight if rep78=="`r'",
msize(large)) 
}
di `"`scatter'"' 

Note that once you come out of the loop, your local includes " ", so you
do need
c.d. quotes then. But I don't have a good explanation for why they are
not essential
within the loop. Perhaps the parser can see that the " " are embedded
within the parens. 
Not sure. 

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

Friedrich Huebler

I am trying to build up a -scatter- command with a -foreach- loop. I
need additional quotes but do not know where to place them. The
problem can be reproduced with the auto data.

. sysuse auto, clear
. tostring rep78, replace
. local scatter ""
. levels rep78, local(rep78)
. foreach r of local rep78 {
  local scatter `"`scatter' (scatter mpg weight if rep78=="`r'",
msize(large))"'
  }
. di "`scatter'"
 (scatter mpg weight if rep78==Unknown function .", msize()
r(133);

As the error message shows, I need additional quotes somewhere. How do
I have to edit the definition of the macro "scatter"? In the end, the
macro should contain the following string, so that I can draw a graph
with the command -graph twoway "`scatter'"-.

(scatter mpg weight if rep78==".", msize(large)) (scatter mpg weight
if rep78=="1", msize(large)) (scatter mpg weight if rep78=="2",
msize(large)) (scatter mpg weight if rep78=="3", msize(large))
(scatter mpg weight if rep78=="4", msize(large)) (scatter mpg weight
if rep78=="5", msize(large))


*
*   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