Trying to obtain a count of sequential numbers with the same model type. Want is the desired report output listing and Have is the available dataset.
Want:
Model First Last Count
xx 100000001 100000002 2
yy 100000003 100000003 1
xx 100000004 100000004 1
xx 100000010 100000010 1
yy 100000011 100000011 1
xx 100000012 100000012 1
xx 100000101 100000102 2
yy 100000103 100000104 2
xx 100000105 100000108 4
data have;
input @1 number @11 model $2.;
cards;
100000001 XX
100000002 XX
100000003 YY
100000004 XX
100000010 XX
100000011 YY
100000012 XX
100000101 XX
100000102 XX
100000103 YY
100000104 YY
100000105 XX
100000106 XX
100000107 XX
100000108 XX
;
run;
Why is the first row 101 - 102 but the 4/5 is 104-104 not 104-110?
A quick and dirty solution:
data have;
input @1 number @11 model $2.;
cards;
100000001 XX
100000002 XX
100000003 YY
100000004 XX
100000010 XX
100000011 YY
100000012 XX
100000101 XX
100000102 XX
100000103 YY
100000104 YY
100000105 XX
100000106 XX
100000107 XX
100000108 XX
;
run;
data have1;
set have;
if model ne lag(model) or dif(number)>1 then
grp+1;
run;
data want;
do count=1 by 1 until (last.grp);
set have1;
by model grp notsorted;
if first.grp then
first=number;
if last.grp then
last=number;
end;
run;
Thanks very much for your help.
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