How to Expand a dataset using value from one of the column

[zqkal]

Hello everyone,

I have an aggregated dataset that I want to expand for further calculation. Does anyone know I could achieve this in data step programming.

Dataset have

data have; 
input name $ group $ mo_freq $ value ; 
datalines; 
wlf_01 actv 1-4 0
wlf_01 actv 5-7 1.15
wlf_01 actv 8-10 1.00
wlf_02 dflt 1-4 0
wlf_02 dflt 5-6 5.15
wlf_02 dflt 7-8 4.25
wlf_02 dflt 9-10 0
wlf_03 prog 1-10 2.23
;
run;

dataset want

name	group	mo_freq	month	value
wlf_01	actv	1-4	1	0.00
wlf_01	actv	1-4	2	0.00
wlf_01	actv	1-4	3	0.00
wlf_01	actv	1-4	4	0.00
wlf_01	actv	5-7	5	1.15
wlf_01	actv	5-7	6	1.15
wlf_01	actv	5-7	7	1.15
wlf_01	actv	8-10	8	1.00
wlf_01	actv	8-10	9	1.00
wlf_01	actv	8-10	10	1.00
wlf_02	dflt	1-4	1	0.00
wlf_02	dflt	1-4	2	0.00
wlf_02	dflt	1-4	3	0.00
wlf_02	dflt	1-4	4	0.00
wlf_02	dflt	5-6	5	5.15
wlf_02	dflt	5-6	6	5.15
wlf_02	dflt	7-8	7	4.25
wlf_02	dflt	7-8	8	4.25
wlf_02	dflt	9-10	9	0.00
wlf_02	dflt	9-10	10	0.00
wlf_03	prog	1-10	1	2.23
wlf_03	prog	1-10	2	2.23
wlf_03	prog	1-10	3	2.23
wlf_03	prog	1-10	4	2.23
wlf_03	prog	1-10	5	2.23
wlf_03	prog	1-10	6	2.23
wlf_03	prog	1-10	7	2.23
wlf_03	prog	1-10	8	2.23
wlf_03	prog	1-10	9	2.23
wlf_03	prog	1-10	10	2.23

[ballardw · Accepted solution]

Key is getting the numeric values from the character variable mo_freq;

data want; 
input name $ group $ mo_freq $ value ; 
do month = input(scan(mo_freq,1),best.) to ( input(scan(mo_freq,2),best.));
   output;
end;
datalines; 
wlf_01 actv 1-4 0
wlf_01 actv 5-7 1.15
wlf_01 actv 8-10 1.00
wlf_02 dflt 1-4 0
wlf_02 dflt 5-6 5.15
wlf_02 dflt 7-8 4.25
wlf_02 dflt 9-10 0
wlf_03 prog 1-10 2.23
;
run;