Macro Do loop didn't work?

ybz12003 — Fri, 01 Dec 2023 20:38:46 GMT

Hello,

The sample macro do loop coding didn't work. Please help.

%let X1=21;
%let X2=22;
%let X3=23;

%Macro aaa (Pathogen);
	data Want;
		set Have;

	%do i  = 1 %to 3;
		If &&X&i..01 <=WeekCode<= &&X&i..13 then Quarter=1;
		else if If &&X&i..14 <=WeekCode<= &&X&i..26 then Quarter=2;
		else if If &&X&i..27 <=WeekCode<= &&X&i..39 then Quarter=3;
		else if If &&X&i..40 <=WeekCode<= &&X&i..52 then Quarter=4;
	%end;;

run;

%mend;
%aaa (RSV);

The error message was partially shown in the log window below.

SYMBOLGEN:  && resolves to &.
SYMBOLGEN:  Macro variable I resolves to 3
SYMBOLGEN:  Macro variable X3 resolves to 23
MPRINT(AAA):   else if If 2327 <=WeekCode <= 2339 then Quarter=3;
SYMBOLGEN:  && resolves to &.
SYMBOLGEN:  Macro variable I resolves to 3
SYMBOLGEN:  Macro variable X3 resolves to 23
NOTE: Line generated by the macro variable "X3".
1     2340
      ----
      22
SYMBOLGEN:  && resolves to &.
SYMBOLGEN:  Macro variable I resolves to 3
SYMBOLGEN:  Macro variable X3 resolves to 23
MPRINT(AAA):   else if If 2340 <=WeekCode <= 2352 then Quarter=4;
MLOGIC(AAA):  %DO loop index variable I is now 4; loop will not iterate again.
MPRINT(AAA):  ;
MPRINT(AAA):   run;

ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, (, *, **, +, -, /, <, <=, <>,
              =, >, ><, >=, AND, EQ, GE, GT, LE, LT, MAX, MIN, NE, NG, NL, OR, [, ^=, {, |, ||,
              ~=.

NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.RSV may be incomplete.  When this step was stopped there were 0
         observations and 6 variables.
NOTE: DATA statement used (Total process time):
      real time           0.99 seconds
      cpu time            0.06 seconds

Re: Macro Do loop didn't work?

Kurt_Bremser — Fri, 01 Dec 2023 20:53:59 GMT

if If

Two IFs in succession can't work.

Re: Macro Do loop didn't work?

A_Kh — Fri, 01 Dec 2023 20:54:01 GMT

		else if If &&X&i..14 <=WeekCode<= &&X&i..26 then Quarter=2;
		else if If &&X&i..27 <=WeekCode<= &&X&i..39 then Quarter=3;
		else if If &&X&i..40 <=WeekCode<= &&X&i..52 then Quarter=4;

else if if.. Could you try to remove one of IF's?

Re: Macro Do loop didn't work?

ballardw — Fri, 01 Dec 2023 21:15:23 GMT

If instead of something odd like "weekcode" you had an actual DATE value then the QTR function would return the value from the date and this macro wouldn't be needed.

Or whatever need is served by this 'quarter' (and week) value could likely be accomplished with a proper format in analysis or reporting.

topic Re: Macro Do loop didn't work? in SAS Programming

Macro Do loop didn't work?

Re: Macro Do loop didn't work?

Re: Macro Do loop didn't work?

Re: Macro Do loop didn't work?