Hi SAS Forum,
This code was written by another programmer.
I am trying to understand two symbols highlighted in yellow color in it.
%if &income = 0 %then %do;
data wave_2;
set wave_1;
by transit_branch acctnumber;
if ~(first.acctnum and last.acctnum) then do;
if currbal ~= (acctbal * -1) then delete;
end;
run;
%end;
%else %do;
proc sort data=wave_1 out=wave_2 nodupkey;
by transit_branch acctnumber;
run;
%end;
Q:
Could you please let me know if the way I understand it correct.
if ~(first.acctnum and last.acctnum) then do;
This means,
if not (first.acctnum and last.acctnum) then do;
if currbal ~= (acctbal * -1) then delete;
This would mean:
if currbal ne (acctbal * -1) then delete;
Thanks
Mirisage
Yes the ~ is another symbol for not. In addition to the word 'not' you can also use the ^ symbol. On the mainframe this symbol looks different but is still the shift-6 key. Some languages use <> or >< for variations of not equal. These two combinations have different meanings in SAS and IMO should be avoided.
Yes the ~ is another symbol for not. In addition to the word 'not' you can also use the ^ symbol. On the mainframe this symbol looks different but is still the shift-6 key. Some languages use <> or >< for variations of not equal. These two combinations have different meanings in SAS and IMO should be avoided.
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