variable name and array

rickw — Mon, 04 Oct 2010 16:09:20 GMT

Hi,

I am working with sas arrays I want to output a value and variable name and value in one column that has a value greater than say 10.

I am running sas code similar to this :

data temp; set temp2;

array abs{*} _numeric_;

do i = 1 to dim(abs);
if(abs(i) > 10) then variable_gr10 = x1|| ... here i want to append name of the variable
end;

run;

Is there any way I could simply get name of the particular variable and append it with another value in the data ?

Thanks

Re: variable name and array

Cynthia_sas — Mon, 04 Oct 2010 16:44:42 GMT

Just wondering...
http://support.sas.com/documentation/cdl/en/lrdict/63026/HTML/default/viewer.htm#a000201956.htm

are you seeing any warning messages in the SAS log. ABS is the name of a SAS function.
doc for ABS function:
http://support.sas.com/documentation/cdl/en/lrdict/63026/HTML/default/viewer.htm#a000245861.htm

cynthia

It says in the doc:

CAUTION:
Using the name of a SAS function as an array name can cause unpredictable results.

If you inadvertently use a function name as the name of the array, SAS treats parenthetical references that involve the name as array references, not function references, for the duration of the DATA step. A warning message is written to the SAS log.

As for your question about creating a new character variable, then this code shows how to use the VNAME function to grab the variable name of an array member.

[pre]
7714 data makearr;
7715 length newcharvar $15;
7716 set sashelp.class(obs=2);
7717 array allnum _numeric_;
7718 do i = 1 to dim(allnum);
7719 varname = vname(allnum(i));
7720 newcharvar = cats('_',put(_n_,2.0),'_',put(i,2.0),'_xxx_',trim(varname));
7721 putlog _n_= i= name= varname= newcharvar=;
7722 end;
7723
7724 run;

_N_=1 i=1 Name=Alfred varname=Age newcharvar=_1_1_xxx_Age
_N_=1 i=2 Name=Alfred varname=Height newcharvar=_1_2_xxx_Height
_N_=1 i=3 Name=Alfred varname=Weight newcharvar=_1_3_xxx_Weight
_N_=2 i=1 Name=Alice varname=Age newcharvar=_2_1_xxx_Age
_N_=2 i=2 Name=Alice varname=Height newcharvar=_2_2_xxx_Height
_N_=2 i=3 Name=Alice varname=Weight newcharvar=_2_3_xxx_Weight
NOTE: There were 2 observations read from the data set SASHELP.CLASS.

[/pre]

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variable name and array

Re: variable name and array