Re: st: the use of loop function in Stata

[Nick Cox <njcoxstata@gmail.com>]

Till: I don't see that there is a distinction here. In terms of Rosie's syntax

    histogram `var',  by(AID4, col(1))
    graph save histogram`var'

should work fine.

Nick

On Tue, Mar 13, 2012 at 3:28 PM, Steve Nakoneshny <scnakone@ucalgary.ca> wrote:
> 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
>>> }
>>>

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