Re: st: Why no error with -table- & trailing -if- ?

[Steve Samuels <sjsamuels@gmail.com>]

Thanks, Nick. I managed to find that section myself. Sergiy, I now
understand what you were describing: command-specific options can
alternate with -if- and -in- qualifiers; a command-specific option must
come first.  Also, the two qualifiers can appear together, as they
can if written before the first comma, but only one instance of each is allowed.

So the following are both legal syntax:

. sum mpg, det, if foreign in 50/l, format
. sum mpg, det, if foreign, format, in 50/l


The Manual calls the insertion of the qualifiers a "return to the
command line", what Sergiy called "command mode". Are there any other
"command line" elements besides the qualifiers that can appear after a
comma?


Steve

On Oct 23, 2013, at 9:01 PM, Nick Cox wrote:

The perhaps surprising extended role of the comma is documented at [U] 11.1.7.

(http://www.stata.com/manuals13/u.pdf p.82)


Nick
njcoxstata@gmail.com


On 24 October 2013 00:46, Sergiy Radyakin <serjradyakin@gmail.com> wrote:
> On Wed, Oct 23, 2013 at 5:58 PM, Steve Samuels <sjsamuels@gmail.com> wrote:
>> 
>> . sysuse auto, clear
>> . table rep78, c(mean mpg), if turn<40
> 
> Because it is out of options already. Visualize it like this:
> 
> cmd , options,  more command, more options
> 
> Comma switches between the command and the options mode. So your
> command is equivalent to:
> table rep78 if turn<40, c(mean mpg)
> 
> Best, Sergiy Radyakin
> 
> 
> 
> 
>> 
>> 
>> Steve
>> sjsamuels@gmail.com
>> 
>> 
>> On Oct 21, 2013, at 9:35 PM, Sergiy Radyakin wrote:
>> 
>> Dear Dirk,
>> 
>> see if -savespss- and or saveto9.exe are able to help:
>>  http://www.radyakin.org/transfer/savespss/savespss.htm
>>  http://www.radyakin.org/transfer/saveto9/cs/index.htm
>> 
>> The first one is a Stata 10.0+ command (in Mata) that writes SPSS
>> system files (*.sav) directly. The second one is a standalone utility
>> to "downgrade" the version of the Stata dataset without Stata at all
>> (neither Stata, nor SPSS, nor Stat/Transfer is necessary for it).
>> 
>> Best, Sergiy Radyakin
>> 
>> 
>> 
>> On Sat, Oct 19, 2013 at 4:41 PM, Dirk Enzmann
>> <dirk.enzmann@uni-hamburg.de> wrote:
>>> Yes.
>>> 
>>> I cannot come up with hard numbers, but here are some impressions as to the
>>> difficulties:
>>> 
>>> I already bought Stata from my private money (for use at my work!) - when I
>>> bought it the first time (several years ago) my institution had no net
>>> license of Stata; even after they decided to invest into a net license, I
>>> regularary bought new versions because my instituion is too slow to invest
>>> in updates (at the moment, the most recent version available is Stata 11!).
>>> I would not starve if I had to buy StatTransfer on top of it, but I am
>>> really hesitating because this I also had to pay subtracting from my salary
>>> because this program does not belong to the software our institution bought
>>> for use of their students or employees.
>>> 
>>> Until Stata 12 I could live comfortably without StatTransfer - I wrote an
>>> SPSS script (SPSS2Stata.sbs) to translate SPSS files to Stata and a Stata
>>> .ado (-dta2sav-) to move Stata files to SPSS. But the way to SPSS is blocked
>>> now since Stata 13.
>>> 
>>> Luckily I have bought Stata 12 before, thus I can use it for moving files
>>> from Stata 13 to SPSS - others, who are new to Stata since version 13 are
>>> not so lucky.
>>> 
>>> I recently convinced colleagues in Finland to use Stata - but now they
>>> recognize that they have to buy StatTransfer on top of it. Of course, this
>>> is my fault, I should have told them before.
>>> 
>>> Some days ago there was a thread in the SPSS discussion list showing that
>>> others experience this problem, as well (see:
>>> http://spssx-discussion.1045642.n5.nabble.com/Stata-to-SPSS-conversion-td5722443.html
>>> ).
>>> 
>>> Perhaps more important than money is the fact that even buying StatTranfer
>>> does not help in all situations: It does not preserve labels of user missing
>>> values (Stata's exended missing values) when transferring Stata data to SPSS
>>> data (the other way round is also not without problems). To overcome this
>>> problem, I wrote -dta2sav- (availabel on SSC). Unfortunately, if you don't
>>> have an older version of Stata at your disposal (here, -uses13- can help),
>>> you can't use it to transfer Stata 13 (format 117) files to SPSS.
>>> 
>>> Of course, you can blame SPSS for not updating their import routines (even
>>> the maintenance of R's -foreign- package has been frozen for Stata formats
>>> after 12, see http://cran.r-project.org/web/packages/foreign/foreign.pdf on
>>> page 5), but this does not help users who want to use Stata in a context of
>>> a majority (or important) colleagues still using SPSS.
>>> 
>>> Dirk
>>> 
>>> 
>>> Sat, 19 Oct 2013 12:17:34 +0100, Nick Cox<njcoxstata@gmail.com> wrote:
>>>> 
>>>> So, in summary, you appear to be saying that you know people who could
>>>> afford Stata 13 but are reluctant to buy because they (a) would be in
>>>> difficulty transferring their datasets to SPSS and (b) cannot afford
>>>> StatTransfer as an extra purchase?
>>>> 
>>>> That's interesting. I have got to say that they are missing out on a
>>>> great upgrade.
>>>> 
>>>> I just checked and a single user academic license [sic] of
>>>> StatTransfer is USD 179.
>>> 
>>>> 
>>>> 
>>>> As I understand, Sergiy's add-ons could help them a lot.
>>>> 
>>>> StataCorp would, I think, be interested in hard evidence that they are
>>> 
>>>> losing out on sales because people really need a kind of "save to
>>>> SPSS" command before they can decide to buy. I have no insight into
>>>> how SPSS is managed.
>>> 
>>> --
>>> ========================================
>>> Dr. Dirk Enzmann
>>> Institute of Criminal Sciences
>>> Dept. of Criminology
>>> Rothenbaumchaussee 33
>>> D-20148 Hamburg
>>> Germany
>>> 
>>> phone: +49-(0)40-42838.7498 (office)
>>>      +49-(0)40-42838.4591 (Mrs Billon)
>>> fax:   +49-(0)40-42838.2344
>>> email: dirk.enzmann@uni-hamburg.de
>>> http://www2.jura.uni-hamburg.de/instkrim/kriminologie/Mitarbeiter/Enzmann/Enzmann.html
>>> ========================================
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