topic Re: Reorder SAS variables in SAS Programming

Reorder SAS variables

hhchenfx — Thu, 02 Feb 2017 23:12:18 GMT

Hi Everyone,

I have a data file like

data have;

input var x_1 x_3 x_bac x_1dnx b ;

datalines;

0 1 1 1 1 0

;

run;

I want to put all X_ to the end, since there are hundred of X_ variable and they follow no rule other than the prefix of X_, is there any way to do it quicky?

Thank you,

HHC

Re: Reorder SAS variables

data_null__ — Thu, 02 Feb 2017 23:18:13 GMT

data reorder;
   if 0 then set have(drop=x_:);
   set have;
   run;

Re: Reorder SAS variables

PeterClemmensen — Fri, 03 Feb 2017 07:38:54 GMT

@data_null__ very cool solution 🙂

Just to understand, when we use the if 0 trick, we make sure that whatever follows is only done in compilation right?

Re: Reorder SAS variables

data_null__ — Fri, 03 Feb 2017 12:10:32 GMT

@PeterClemmensen wrote:

@data_null__ very cool solution 🙂

Just to understand, when we use the if 0 trick, we make sure that whatever follows is only done in compilation right?

Correct.

Re: Reorder SAS variables

hhchenfx — Mon, 06 Feb 2017 22:11:28 GMT

Hi Data_null_,
Interesting indeed!
But what does the "if 0" do to the code?
Thank you,
HHC

Re: Reorder SAS variables

data_null__ — Tue, 07 Feb 2017 14:46:07 GMT

@hhchenfx wrote:
Hi Data_null_,
Interesting indeed!
But what does the "if 0" do to the code?
Thank you,
HHC

http://support.sas.com/documentation/cdl/en/lrcon/65287/HTML/default/viewer.htm#p1d61passkeqo0n1jdn023ykd0g5.htm

It is an expression that is FALSE preventing the SET statement from being executed. The SET statement is compiled which places variables in the PDV in the desired order.

Re: Reorder SAS variables

hhchenfx — Tue, 07 Feb 2017 15:59:45 GMT

Thank you for your help!

HHC