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_Grove_
Calcite | Level 5

What is the function of the double commas (,,) in the code below?

 

data dm6a;
    set rawdata.dob rawdata.xds(where=(datc^=''));
    length pendtc $19.;
    if datc^= '' then do; %dtc(datc,,pendtc); end;
    else if visdatc ^= '' then do; %dtc(visdatc,,pendtc); end;
    else do; %dtc(visdatc,,pendtc); end;
run;

1 ACCEPTED SOLUTION

Accepted Solutions
Astounding
PROC Star

The commas indicate that when %DTC was defined, it was designed to hold three parameters.  When calling the macro, the values supplied are:

 

1st parameter = datc (or visdatc)

 

2nd parameter = (null string)

 

3rd parameter = pendtc

 

The extra comma holds the parameters in place.  Without it, macro language would think that the second parameter should be pendtc

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1 REPLY 1
Astounding
PROC Star

The commas indicate that when %DTC was defined, it was designed to hold three parameters.  When calling the macro, the values supplied are:

 

1st parameter = datc (or visdatc)

 

2nd parameter = (null string)

 

3rd parameter = pendtc

 

The extra comma holds the parameters in place.  Without it, macro language would think that the second parameter should be pendtc

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