Hi,
I have a case of complicated (at least for my level) data transformation: I need to transpose the data and create a new variable.
Putting the problem into words is also complicated, so here I will just show the data that I have and the data that I would like to obtain:
have:
Country | VarA_2001 | VarA_2002 | VarB_2001 | VarB_2002 | VarC_2001 | VarC_2003 |
US | 1 | 3 | 5 | 7 | 9 | 11 |
UK | 2 | 4 | 6 | 8 | 10 | 12 |
want:
Country | VarA | VarB | VarC | year |
US | 1 | 5 | 9 | 2001 |
UK | 2 | 6 | 10 | 2001 |
US | 3 | 7 | 2002 | |
UK | 4 | 8 | 2002 | |
US | 11 | 2003 | ||
UK | 12 | 2003 |
Thanks!
data have; infile cards dlm='09'x; input Country $ VarA_2001 VarA_2002 VarB_2001 VarB_2002 VarC_2001 VarC_2003; cards; US 1 3 5 7 9 11 UK 2 4 6 8 10 12 ; proc transpose data=have out=need; by country notsorted; run; data need; set need; year=scan(_name_,2,'_'); _name_=scan(_name_,1,'_'); run; proc sort data=need; by year descending country; run; proc transpose data=need out=want (drop=_:); by year descending country; var col1; id _name_; run;
Art, CEO, AnalystFinder.com
data have; infile cards dlm='09'x; input Country $ VarA_2001 VarA_2002 VarB_2001 VarB_2002 VarC_2001 VarC_2003; cards; US 1 3 5 7 9 11 UK 2 4 6 8 10 12 ; proc transpose data=have out=need; by country notsorted; run; data need; set need; year=scan(_name_,2,'_'); _name_=scan(_name_,1,'_'); run; proc sort data=need; by year descending country; run; proc transpose data=need out=want (drop=_:); by year descending country; var col1; id _name_; run;
Art, CEO, AnalystFinder.com
Decompose, then transpose
data temp;
set have;
array v{*} VarA_2001 -- VarC_2003;
do i = 1 to dim(v);
var = scan(vname(v{i}), 1, "_");
year = input(scan(vname(v{i}), 2, "_"), best.);
value = v{i};
output;
end;
keep country var year value;
run;
proc sort data=temp; by country year; run;
proc transpose data=temp out=want(drop=_name_);
by country year;
var value;
id var;
run;
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