topic Re: how to find next 100th observation in time series in SAS Procedures

how to find next 100th observation in time series

Ravikumarkummari — Wed, 28 Oct 2015 05:57:03 GMT

Hii Good morning.

I have a dataset in that variable are date,documentname, downloads.

the dates are starting from 1st jan2015 to 30sep 2015.

computing each date wise finding the next 100th obseravation.

example 1st jan2015 doc1234 53

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

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

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

after100th day is 4thApr2015 doc1234 87.

I want the output like 1st jan2015 Doc1234 53 4thApr2015 87.

this have to done in time series analysis in sas.

Any suggessions would be greatly recommended.

Re: how to find next 100th observation in time series

user24feb — Wed, 28 Oct 2015 07:51:11 GMT

I am not sure if I have fully understood what you are after, but I think:

Data A (Drop=i);
Format Date Date9.;
Do i=1 To 200;
Date=IntNX('day','01JAN2015'd,i-1,'same');
Value=Round(Rannor(1)*5+50,1);
Output;
End;
Run;

Proc TimeData Data=A Out=_NULL_ OutArray=A (Where=(not Missing(Value2)) Drop=_:);
ID Date Interval=Day;
Var Value;
OutArray Date2 Value2; * I don't think you can insert a date format for Date2 here .. ;
Do t=1 To _LENGTH_;
Value2[t]=Value[t-100];
Date2[t]=Date[t-100];
End;
Run;

Data A;
Set A;
Format Date2 Date9.;
Run;

Re: how to find next 100th observation in time series

user24feb — Wed, 28 Oct 2015 07:52:51 GMT

P.S. The Smiley isn't really a Smiley, but "Drop= :_ )".

Re: how to find next 100th observation in time series

RW9 — Wed, 28 Oct 2015 09:33:25 GMT

Can you post an example of test data in the form of a datastep, and required output. It really isn't clear from your post what you expect.

Re: how to find next 100th observation in time series

kannand — Wed, 28 Oct 2015 11:12:42 GMT

Hello,

Have you considered the "LAG" function in SAS ? This should help with time series data...

http://support.sas.com/documentation/cdl/en/etsug/60372/HTML/default/viewer.htm#etsug_tsdata_sect048.htm

Good luck...!!!

Re: how to find next 100th observation in time series

kannand — Wed, 28 Oct 2015 11:18:27 GMT

Another paper thought might help is attached.

Re: how to find next 100th observation in time series

Steelers_In_DC — Wed, 28 Oct 2015 13:28:43 GMT

If it's not dependent on date and you only want the 100th obs then this should do it:

data have;
infile cards dsd;
input field @@;
cards;
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,
.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.,.
;

data all want;
set have;
count + 1;
if count = 101 then count = 1;
output all;
if count = 1 then output want;
run;