topic Re: using Catx in for combining TWO macro variables in SAS Programming

using Catx in for combining TWO macro variables

navyaroopa — Wed, 11 Jan 2017 05:56:02 GMT

Hi,

I have my program as

%let date=26Jan2017;

%let time=0012;

%let dattt= %sysfunc(catx(T,&date,&time));

%put &dattt;

the value for &dattt is 26Jan2017T12,

But i want my value as 26Jan2017T0012,

Why im not getting 0012 for my time.

Please could any one help.

Re: using Catx in for combining TWO macro variables

Reeza — Wed, 11 Jan 2017 06:18:47 GMT

Catx converts it to a number. Don't use it.

%let datt=&date.T&time.;

Re: using Catx in for combining TWO macro variables

navyaroopa — Wed, 11 Jan 2017 06:25:22 GMT

I have used &date.T&time as an alternative in the program, but wanted to know Why catx is not working.

Re: using Catx in for combining TWO macro variables

Reeza — Wed, 11 Jan 2017 06:47:05 GMT

It thinks it's a number. Because the function takes char and num types either are valid and it has to guess at types in macro format. I don't know what the rules are, if you're really interested I would contact tech support.

You may be able to force it in the SYSFUNC by including quotes around the value.

Re: using Catx in for combining TWO macro variables

navyaroopa — Wed, 11 Jan 2017 07:19:53 GMT

Hi Reeza,

I have given with the quotes as %let datt=%sysfunc(catx(T,"&date","&time"));

I am getting the value but along with the quotes.

I would be very Thankfull if you could consult tech support and help me to know this.

Thank You.

Re: using Catx in for combining TWO macro variables

Reeza — Wed, 11 Jan 2017 14:00:30 GMT

Sorry, I meant to say you could contact tech support 🙂

Re: using Catx in for combining TWO macro variables

Quentin — Wed, 11 Jan 2017 14:23:56 GMT

Agree with @Reeza. I don't see a way to tell CATX that the value that looks like a number is not a number. And generally for concatenation in the macro language CAT functions are not needed, as shown in the accepted solution.

That said, if you went the route of adding quote marks, in the macro language those quote marks are part of the value (not a way to indicate that a value is text). The good news is that when a quote mark (or any other non-numeric character) is part of the value, CATX will see that it is not a number. But because those quote marks become part of the value, you would have to removed them yourself.

So in theory, you could hack it as something like:

40   %let date=26Jan2017;
41   %let time=0012;
42   %let datt=%sysfunc(compress(%sysfunc(catx(T,"&date","&time")),%str(%")));
43   %put &datt;
26Jan2017T0012