topic Re: array problem in SAS Procedures

array problem

GeorgeSAS — Thu, 02 Apr 2015 13:31:15 GMT

Hello everyone,

Can you help me find the problem? I want b as new variable and have same dimension as a

data one;

set sashelp.class;

array a _character_;

array b(*) b1-b(dim(a));

for i-1 to dim(a);

b=a;

end;

run;

Thanks

Re: array problem

Jagadishkatam — Thu, 02 Apr 2015 13:46:41 GMT

Please try

data one;

set sashelp.class;

array a(*) _character_ ;

array b(*) $ b1-b2;

do i = 1 to dim(a);

b=a;

end;

run;

Thanks,

Jag

Re: array problem

Kurt_Bremser — Thu, 02 Apr 2015 13:58:53 GMT

You can't use dim() to define an array. The array elements are determined at compile time, while dim() is a function resolved at runtime of the data step.

Store the array size into a macro variable and use that:

data _null_;

set sashelp.class;

if _n_ = 1;

array a _character_;

call symput('array_size',left(trim(put(dim(a),best4.))));

run;

data one;

set sashelp.class;

array a _character_;

array b(*) $ b1-b&array_size;

do i = 1 to dim(a);

b=a;

end;

run;

Re: array problem

data_null__ — Thu, 02 Apr 2015 14:11:19 GMT

You don't need to read any records and certainly not ALL of them.

data _null_; 
   if 0 then set sashelp.class(keep=_character_);
   array a _character_; 
   call symputX('array_size',dim(a));
   stop; 
   run; 
%put NOTE: &=array_size;


NOTE: ARRAY_SIZE=2

Re: array problem

GeorgeSAS — Sat, 04 Apr 2015 18:29:25 GMT

data _null_;

if 0 then set sashelp.class(keep=_character_);

array a _character_;

call symputX('array_size',dim(a));

stop;

run;

data one;

set sashelp.class;

array a _character_;

array b(*) $ b1-b&array_size.;

do i=1 to dim(a);

b=a;

end;

run;