Proc expand: How to skip the most recent obs. - SAS Support Communities

Obsidian | Level 7

Obsidian | Level 7

Proc expand: How to skip the most recent obs.

Posted 07-23-2016 07:05 AM (782 views)

proc expand data=XXX out=XXX method=none;
by AAA;
convert high = high1 / transformin=(movmax 12 trimleft 10);
run;

I want to get the Maxmium obs from the most recent 12 obs in the moving windows. But I want to skip the most recent 1 observation. In fact I use 1-11st obs, while skipping 12st obs. How to code it?

1 REPLY 1

PROC Star

Re: Proc expand: How to skip the most recent obs.

Posted 11-20-2016 05:29 PM (704 views) | In reply to ZZB

Better late than never?

convert high=high1 / transformin=(lag 1) transformout=(movmax 12 trimleft 10);

This makes the current value of high tied with the preceding, so max over 12 obs, is the same as max over preceding 11 obs.

Regards,

Mark

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