3 Month totals sequence in proc report

[Q1983]

data test;

infile datalines;

input Year $ Month $ Sales Returns ;

return;

datalines;

2014 Jan2014 1 1

2014 Feb2014 1 2

2014 Mar2014 1 3

2015 Apr2015 2 2

2015 May2015 1 1

2015 Jun2015 1 1

;

run;

proc report = test style(summary)=Header;

column Year Month Sales Returns ;

define Year /order order=data style (column)=Header;

define Sales /sum f=comma6.;

define Returns /sum f=comma6.;

break after year /summarize;

compute after Year;

line ' ';

endcomp;

run;

I want to get group totals every 3 months as follows:

1. Add sales to returns (sales+returns)
2. Divide Sales into the (sales+returns) figure and get a percentage called ActivityPct in 3 month intervals (example 3+6=9   then 3/9 = 33%

In this example I evaluate after Year.  However for the 3 month totalling I imagine I need a measure that evaluates after 3 months

Current Output

Year	Month	Sales	Returns
2014	Jan2014	1	1
	Feb2014	1	2
	Mar2014	1	3
2014		3	6
2015	Apr2015	2	2
	May2015	1	1
	Jun2015	1	1
2015		4	4

[Reeza]

Can you create a QUARTER variable that would define your months/periods? You can use the NODISPLAY option to not have that variable shown in the report, even if you're using it.

If you have a date it can probably be derived from the date.

EDIT: Quarter does work exactly as expected. It's the NOPRINT option, not NODISPLAY.

data test;
infile datalines;
input Quarter Year $ Month $ Sales Returns ;
return;
datalines;
1 2014 Jan2014 1 1
1 2014 Feb2014 1 2
1 2014 Mar2014 1 3
2 2015 Apr2015 2 2
2 2015 May2015 1 1
2 2015 Jun2015 1 1
;
run;
proc report  data= test style(summary)=Header;
column quarter Year Month Sales Returns ;
define quarter / group noprint;
define Year /order order=data style (column)=Header;
define Sales /sum f=comma6.;
define Returns /sum f=comma6.;
break after quarter /summarize;
compute after quarter;
line ' ';
endcomp;
run;