topic Re: How to know weather the data set contains special characters in each variable or not in SAS Programming

How to know weather the data set contains special characters in each variable or not

srinath3111 — Thu, 17 May 2018 09:32:11 GMT

Hi,

data ds;

infile datalines;

input a$ b$ c$ d$ e$;

datalines;

1 2 as> sd< 78#

3 5 a>a sd< 78&

1 2 <ss sd< 78*

1 2 ss 3 84

;

run;

output may be like

_n_

1 2 as> sd< 78#

3 5 a>a sd< 78&

1 2 <ss sd< 78*

I was trying

data ds1;
array spc(93) _All_;
set work.ds nobs=nobs point=i;
do i=1 to dim(spc);
where spc(i) like (<%,>%,%>%,>%,%>,%>%);
end;
stop;
run;

Thanks in advance

Re: How to know weather the data set contains special characters in each variable or not

RW9 — Thu, 17 May 2018 10:03:58 GMT

Some information would be helpful. Special characters normally refer to tabs, or carriage return etc. I don't see any of these here?

Do you just want to see if the string contains <, >, or %? If so:

data ds1;
  array spc{93} _all_;
  set work.ds;
  do i=1 to dim(spc);
    if lengthn(compress(spc{i},'<>%',"k")) then k=1;
  end;
  if k;
run;

This goes over each variable, if the string when all but <>% are removed's length is greater than 0 then k is set to 1. After all array elements are checked, if k is 1 then it gets output.

Re: How to know weather the data set contains special characters in each variable or not

srinath3111 — Thu, 17 May 2018 14:37:36 GMT

Hi,

It doesnt work.

Thanks

Re: How to know weather the data set contains special characters in each variable or not

ballardw — Thu, 17 May 2018 15:00:53 GMT

Doesn't work is awful vague.

Are there errors in the log?: Post the code and log in a code box opened with the {i} to maintain formatting of error messages.

No output? Post any log in a code box.

Unexpected output? Provide input data in the form of data step code pasted into a code box, the actual results and the expected results. Instructions here: https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-a-data-step-version-of-your-dat... will show how to turn an existing SAS data set into data step code that can be pasted into a forum code box using the {i} icon or attached as text to show exactly what you have and that we can test code against.

Re: How to know weather the data set contains special characters in each variable or not

Patrick — Fri, 18 May 2018 00:28:14 GMT

@srinath3111

You need to provide a bit more explanation in your posts. Don't forget that you're asking us to help you so please have the courtesy and spend the time required to help us to help you.

Following the coding approach you've tried below code should do the job.

data have;
  infile datalines;
  input a$ b$ c$ d$ e$;
  datalines;
1 2 as> sd< 78#
3 5 a>a sd< 78&
1 2 <ss sd< 78*
1 2 ss 3 84
;
run;

data want(drop=_:);
  set work.have;
  array spc(*) _character_;
  do _i=1 to dim(spc);
    if notalnum(compress(spc[_i])) then
      do;
        row=_n_;
        output;
        leave;
      end;
  end;
run;