topic Re: Char Variable All possible Character in SAS Procedures

Char Variable All possible Character

rkumar23 — Mon, 27 Jul 2015 07:40:29 GMT

I have a 8 byte long Character variable example NNNNNNNN Now This word will replace with "D" at any of the 8 character so for example It can be DNNNNNNN or DDNNNNNN now my requirement is only select those observation where minimum within this string there are TWO DD so out of three above only with "DDNNNNNN" contain observation should be selected...

I need to consider possibility that D can be at any location so it can be combination like NNDNNNDN or any combination like that...Can somebody share thoughts how do we select these observations?

Re: Char Variable All possible Character

Patrick — Mon, 27 Jul 2015 07:53:37 GMT

You could use a compress() function and remove anything other than 'D'. Then you check if the remaining string (only Ds) has at least a length of 2.

data have;

input row string $ select_expected;

datalines;

1 NNDNNNDN 1

2 DNNNNNNN 0

3 NNNDNNNN 0

4 NNDNDNDN 1

;

run;

data want;

set have;

if lengthn(compress(string,'D','k'))>=2;

run;

Re: Char Variable All possible Character

MadhuKorni — Mon, 27 Jul 2015 08:05:04 GMT

data want;

set have;

if count(var,'D','i') gt 1; --- i ignores case

run;

Results a dataset which contains minimum of two D's (either D or d) in a variable Var.

data want;

set have;

if count(var,'D') gt 1;

run;

Results a dataset which contains minimum of two D's (only D) in a variable Var.

Re: Char Variable All possible Character

rkumar23 — Mon, 27 Jul 2015 08:11:22 GMT

Thanks Patrick it worked...