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calculate how many arguments are in &vector.

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Frequent Contributor
Posts: 142

calculate how many arguments are in &vector.

Hello

User define a sas macro variable called vector.

%let vector=1805+1804+1712+1704;

 

I want to create another sas macro variable called n that will calculate how many arguments are in &vector.

I want to calculate it in open code.

In this example &n. will get value 4 because there are 4 arguments in &vector.

 

thanks

Joe

 

Frequent Contributor
Posts: 142

Re: calculate how many arguments are in &vector.

I found the answer

%let n=%sysfunc(countw(&vector));
%put &n.;

Frequent Contributor
Posts: 142

Re: calculate how many arguments are in &vector.

Another way 

data _null_;
nn=countw("&vector");
put nn=;
call symput ('nn',nn);
run;
%put &nn.;

Frequent Contributor
Posts: 142

Re: calculate how many arguments are in &vector.

other ways that are working well even if &vector. is empty


%let n=%sysfunc(countw(&vector.,'+'));
%put &n.;
%let n=%sysfunc(countw(%str()&vector.));
%put &n.;
%let n=%sysfunc(countw(&vector.%str()));
%put &n.;
%let n=%sysfunc(countw(%str(&vector.)));
%put &n.;

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