proc sort data=have; by date group subgroup partner product; run; PROC EXPAND DATA=have OUT=want FROM = DAY TO = WEEK; BY group subgroup partner product; ID date; CONVERT cnt / ;
ERROR: There is only 1 usable input observation. At least 2 are required. (Some observations may have been ignored because of
previous errors.)
I'm trying to do a simple convert of daily data to weekly for forecast.
Bonus question, anybody know how I can roll it up to Sundays?
Thank you!
Why do you have date on the BY statement in proc sort twice?
oops! That was a typo. Fixed.
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