I have a macro variable that is a list of variable names delimited by spaces. I want to make a new macro variable that is the count of the number of variable names in the macro list. I thought we had a macro function that would do this but I can’t seem to find it. Any general hints or a push in the right direction would be much appreciated.
With %SYSFUNC() almost any function is potentially a macro function now.
%let n=%sysfunc(countw(&list,%str( )));
With %SYSFUNC() almost any function is potentially a macro function now.
%let n=%sysfunc(countw(&list,%str( )));
Thank you, Tom.
That worked like a charm!
Hi Tom,
%let n=%sysfunc(countw(&list,%str());
In this code, what is the function of %str())?
Thanks !!!
It tells the function which characters to consider as causing word boundaries. So %STR( ) tells to only consider a blank as the delimiter for work boundaries.
If your computer uses ASCII characters, then the default delimiters are as follows:
blank ! $ % & ( ) * + , - . / ; < ^ |
Thanks, Tom.
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