⨳ month of quarter variable ⨳
2011 Feb 08, Tuesday
⨳ 1 minute read ⨳ 139 words ⨳ date values ⨳ format ⨳ sas ⨳quick formula to calculate the month of the quarter (JAN, APR, JUL, OCT=1; FEB, MAY, AUG, NOV=2; MAR, JUN, SEP, DEC=3). moq=mod(month(date- value)-1,3)+1; note this is completely poached from an old excel formula.
here’s the formula in action:
data _null_;
do y = 2009 to 2010;
do m = 1 to 12;
d=mdy(m,1,y); * make a date variable;
moq=mod(month(d)-1,3)+1; * make Month Of Quarter variable;
put d date9. +5 moq; * put to log;
end;
end;
run;
from the log
01JAN2009 1
01FEB2009 2
01MAR2009 3
01APR2009 1
01MAY2009 2
01JUN2009 3
01JUL2009 1
01AUG2009 2
01SEP2009 3
01OCT2009 1
01NOV2009 2
01DEC2009 3
01JAN2010 1
01FEB2010 2
01MAR2010 3
01APR2010 1
01MAY2010 2
01JUN2010 3
01JUL2010 1
01AUG2010 2
01SEP2010 3
01OCT2010 1
01NOV2010 2
01DEC2010 3