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Terho
Obsidian | Level 7

Hello,

 

I am using a proc summary step to summarize my data.

However, I want to divide the summary statistics in the "VAR" statement below by 1,000,000.

 

PROC SUMMARY DATA=ExecSummary nway missing;
CLASS
JOBID
PERIOD_ID
SCENARIO;
VAR
RQ01
RQ02
NCO_9Q
NCO_13Q
;
OUTPUT out=ExecOutput (drop=_FREQ_ _TYPE_) sum=;
RUN;

 

Is there anyway to divide the summary statistics by 1 million directly in the proc summary step?

 

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
mkeintz
PROC Star

You could do make a weight variable:

 

data need / view=need;
  set execsummary;
  _wgt=1/1000000;
run;

PROC SUMMARY DATA=need nway missing;
  CLASS  JOBID  PERIOD_ID  SCENARIO;
  VAR  RQ01  RQ02  NCO_9Q  NCO_13Q ;
  weight _wgt; 
  OUTPUT out=ExecOutput (drop=_FREQ_ _TYPE_) sum=;
RUN;

 

There is not much efficiency loss here, since NEED is a data set view, not a data set file.  NEED will be activated only when called by the proc summary, and will stream its data to the proc, not to disk storage.  So virtually no input/output cost. 

--------------------------
The hash OUTPUT method will overwrite a SAS data set, but not append. That can be costly. Consider voting for Add a HASH object method which would append a hash object to an existing SAS data set

Would enabling PROC SORT to simultaneously output multiple datasets be useful? Then vote for
Allow PROC SORT to output multiple datasets

--------------------------

View solution in original post

3 REPLIES 3
Reeza
Super User

Can you apply a format to the results instead to scale the results?

 


@Terho wrote:

Hello,

 

I am using a proc summary step to summarize my data.

However, I want to divide the summary statistics in the "VAR" statement below by 1,000,000.

 

PROC SUMMARY DATA=ExecSummary nway missing;
CLASS
JOBID
PERIOD_ID
SCENARIO;
VAR
RQ01
RQ02
NCO_9Q
NCO_13Q
;
OUTPUT out=ExecOutput (drop=_FREQ_ _TYPE_) sum=;
RUN;

 

Is there anyway to divide the summary statistics by 1 million directly in the proc summary step?

 

Thanks


 

mkeintz
PROC Star

You could do make a weight variable:

 

data need / view=need;
  set execsummary;
  _wgt=1/1000000;
run;

PROC SUMMARY DATA=need nway missing;
  CLASS  JOBID  PERIOD_ID  SCENARIO;
  VAR  RQ01  RQ02  NCO_9Q  NCO_13Q ;
  weight _wgt; 
  OUTPUT out=ExecOutput (drop=_FREQ_ _TYPE_) sum=;
RUN;

 

There is not much efficiency loss here, since NEED is a data set view, not a data set file.  NEED will be activated only when called by the proc summary, and will stream its data to the proc, not to disk storage.  So virtually no input/output cost. 

--------------------------
The hash OUTPUT method will overwrite a SAS data set, but not append. That can be costly. Consider voting for Add a HASH object method which would append a hash object to an existing SAS data set

Would enabling PROC SORT to simultaneously output multiple datasets be useful? Then vote for
Allow PROC SORT to output multiple datasets

--------------------------
Terho
Obsidian | Level 7

Thank you! This worked wonderfully!

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