Re: st: the use of foreach command in Stata

[Steve Nakoneshny <scnakone@ucalgary.ca>]

Rosie,

You need to use -graph save-. See -help graph- for more details. I can't post anything more concrete from here.

Steve

Sent via carrier pigeon

On Mar 14, 2012, at 7:23 PM, "Rosie Chen" <jiarongchen2002@yahoo.com> wrote:

> 
> Nick, sorry that I didn't see your response to Till earlier. If using `var' instead of lname is ok, then I guess my question is:  how can I save all the histogram graphs and track back all the graphs? Stata only showed the last graph to me. Thank you, 
> 
> ________________________________
> From: Nick Cox <njcoxstata@gmail.com>
> To: statalist@hsphsun2.harvard.edu 
> Sent: Tuesday, March 13, 2012 3:13 PM
> Subject: Re: st: the use of loop function in Stata
> 
> As before I recommend against using the term "loop function". You are
> using the -foreach- command. It's not a function (Stata sense).
> "Looping with -foreach- " also makes sense.
> 
> The reason this doesn't work is that "lnamelist" is not a keyword
> recognised by -foreach-: look again at the help.
> 
> Till actually recommended something different from what you typed:
> 
> foreach lname in lnamelist
> 
> but that is also illegal, except in very special circumstances, a loop
> with just one literal name "lnamelist". I didn't spot in my earlier
> reply that Till's suggestion was illegal (except in very special
> circumstances).
> 
> Nick
> 
> On Tue, Mar 13, 2012 at 6:50 PM, Rosie Chen <jiarongchen2002@yahoo.com> wrote:
>> Thank you, Steve and Till. Below is the revised syntax, but I got an error message
> of "variable lnamelist not
> found".  Isn't lp* the list? This is the first time I use the loop function, so any suggestion would be appreciated.
>> 
>> foreach lname in lnamelist lp*{
>> histogram `lname',  by(AI4, col(1))
>> graph save histogram`lname', replace
>> }
>> 
>> 
>> ----- Original Message -----
>> From: Steve Nakoneshny <scnakone@ucalgary.ca>
>> To: "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
>> Cc:
>> Sent: Tuesday, March 13, 2012 11:28 AM
>> Subject: Re: st: the use of loop function in
> Stata
>> 
>> You will also need to add the -replace- option to the histogram
> command.
>> 
>> On 2012-03-13, at 8:44 AM, Dr. Till Ittermann wrote:
>> 
>>> Hi,
>>> 
>>> I would loop over lname not var:
>>> 
>>> foreach lname in lnamelist {
>>> histogram `lname',  by(AID4, col(1))
>>> graph save histogram`lname'
>>> }
>>> 
>>> 
>>> 
>>> m 13.03.2012 15:36, schrieb Rosie Chen:
>>>> 
> Nick, thank you very much for the further advice, which makes the 
> syntax more efficient. Given the loop syntax I have, how to save all the
> histogram graphs? If I use the code below, the error message says: 
> "file histogram.gph already exists".
>>>> 
>>>> 
>>>> foreach var of varlist lp*{
>>>> 
>>>>      histogram `var',  by(AID4, col(1))
>>>> 
>>>>      graph save histogram
>>>> }
>>>> 
> 
> *
> *   For
> searches and help try:
> *  http://www.stata.com/help.cgi?search
> *  http://www.stata.com/support/statalist/faq
> *  http://www.ats.ucla.edu/stat/stata/
> 
> 
> N
> 
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/