Date:         Wed, 30 Dec 1998 11:56:24 -0800
Reply-To:     "E. S." <sasq98@YAHOO.COM>
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From:         "E. S." <sasq98@YAHOO.COM>
Subject:      Differences between PC and Mainframe SAS(Why doesn't NOBS  work?)
Content-Type: text/plain; charset=us-ascii

Well, that IS very interesting!
I wonder how many other "subtle" differences there are between SAS PC
and the mainframe.  I personally am just recently starting to use SAS
on the PC, so if you know of anything else that will give me major
headaches I'll appreciate it if you'd let me know.
Right now for example I just noticed that the time printed in my
output on SAS PC is not the same time as inmy system.  As a matter of
fact, is off by 6 hours or so!  Is there a way to change the time so
it'll be read directly from the PC?  I know the mainframe version
picks the time from the system.
Thanks again,
Ed
 
---Victor Kamensky <kamensky@aecom.yu.edu> wrote:
>
> Hi,Ed!
> You found a difference between PC and mainframe SAS.
> Your code does not work on PC because of the following reasons:
> a) you did not specify NOBS= option in the SET statement.
> b) If you SET data set with 0 observarions, DATA step
>   terminates and subsequent statements are not executed.
>
> As your code works on mainframe, mainframe SAS works
> differently
> a) nobs variable is created automatically.
> b)data step does not terminate if you set
>   a date set with 0 observations.
> Now you tell me if this is true for mainframe SAS
>  (I only use PC).
>
> Obviously it is not the only difference betwee
> SAS language on different platforms.
> Did someone listed/documented such things?
>
> Victor Kamensky
>  Programmer
>  Albert Einstein College of Medicine
>
>
>
> At 08:54 AM 12/30/98 -0800, you wrote:
> >Well, first of all: Thanks Victor!
> >This change in the code worked.  I'll try to make some sense as of
> >why...
> >Ed
> >
> >---Victor Kamensky <kamensky@aecom.yu.edu> wrote:
> >>
> >> Hi,Ed!
> >> That's the PC modification of your program!
> >> Victor Kamensky
> >> Programmer
> >> Albert Einstein College of Medicine
> >> 4061  DATA SEARCH;RUN;
> >> NOTE: The data set WORK.SEARCH has 1 observations and 0 variables.
> >> NOTE: The DATA statement used 0.05 seconds.
> >> 4062  data _null_;
> >> 4063       if nobs=0  then put
> >> 4064       'EMPTY DATA SET!!!';
> >> 4065     set search NObS=NOBS;
> >> 4066    run;
> >> NOTE: The DATA statement used 0.11 seconds.
> >>
> >> 4067  DATA SEARCH;STOP;RUN;
> >> NOTE: The data set WORK.SEARCH has 0 observations and 0 variables.
> >> NOTE: The DATA statement used 0.22 seconds.
> >> 4068  data _null_;
> >> 4069       if nobs=0 then put
> >> 4070       'EMPTY DATA SET!!!';
> >> 4071     set search NObS=NOBS;
> >> 4072    run;
> >> EMPTY DATA SET!!!
> >> NOTE: The DATA statement used 0.11 seconds.
> >>
> >>
> >> At 08:12 AM 12/30/98 -0800, you wrote:
> >> >This piece of code will work in the mainframe, but for some
reason it
> >> >won't in the PC.  Any ideas as of why??
> >> >
> >> >543  data _null_;
> >> >544   set search;
> >> >545   file print;
> >> >546     if nobs=0 and _n_ le 1 then put
> >> >547     'EMPTY DATA SET!!!';
> >> >548  run;
> >> >
> >> >NOTE: Variable NOBS is uninitialized.
> >> >NOTE: 0 lines were written to file PRINT.
> >> >NOTE: The DATA statement used 0.0 seconds.
> >> >
> >> >
> >> >Thanks in advance,
> >> >Ed
> >> >
> >> >
> >> >
> >> >_________________________________________________________
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> >> >
> >>
> >>
> >
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> >
>
>
 
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