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fix: more comments in mp_prevobs

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Allan Bowe
2020-12-25 10:15:03 +00:00
parent 4c333ae7b3
commit 659339bd98
1 changed files with 4 additions and 4 deletions
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8
base/mp_prevobs.sas
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@@ -12,16 +12,16 @@
data example;
set sashelp.class;
calc_var=_n_*3;
* initialise hash and save from PDV ;
%* initialise hash and save from PDV ;
%mp_prevobs(INIT,history=2)
if _n_ =10 then do;
* fetch previous but 1 record;
%* fetch previous but 1 record;
%mp_prevobs(FETCH,-2)
put _n_= name= age= calc_var=;
* fetch previous record;
%* fetch previous record;
%mp_prevobs(FETCH,-1)
put _n_= name= age= calc_var=;
* reinstate current record ;
%* reinstate current record ;
%mp_prevobs(FETCH,0)
put _n_= name= age= calc_var=;
end;