topic Re: Remove duplicate string with condiction? in SAS Programming

Remove duplicate string with condiction?

ybz12003 — Thu, 14 Dec 2017 15:16:52 GMT

Hello:

I would like to remove the group containing (10, 20, 30, and 40) duplicates with the stings the same in Class, Component and Product. If the strings in Class, Component and Product are different, I would like to keep it. Therefore, my final result should be something list below. Please advice. Thanks.

data test;

infile datalines dsd;

input Group Class : $20. Component : $20. Product : $20.;

datalines;

10, ANTI/INSULIN, , ,

10, ANTI/VITA, , ,

15, PHENAZO, , ,

19, Large, , ,

20, , HERBS, ,

20, , PSYCH, ,

22, , SKIN, ,

27, , HERBS, ,

30, ANTI/INSULIN, , PHENAZO,

40, , , FLOWER,

40, , , SUBST,

45, , , BANZOCAINE,

;

data final;

infile datalines dsd;

input Group Class : $20. Component : $20. Product : $20.;

datalines;

10, ANTI/INSULIN, , ,

10, ANTI/VITA, , ,

15, PHENAZO, , ,

19, Large, , ,

20, , HERBS, ,

20, , PSYCH, ,

22, , SKIN, ,

27, , HERBS, ,

30, ANTI/INSULIN, , PHENAZO,

40, , , FLOWER,

40, , , SUBST,

45, , , BANZOCAINE,

;

Re: Remove duplicate string with condiction?

RW9 — Thu, 14 Dec 2017 14:27:47 GMT

Is that really your question, as I would think:

proc sort data=test nodupkey;
  by group class;
run;

Would suffice?

Re: Remove duplicate string with condiction?

ybz12003 — Thu, 14 Dec 2017 15:20:24 GMT

Hi RW9:

I apologized that I didn't make my sample dataset clearly. I only need to remove the duplicated in (10, 20, 30, 40). In other word, if the duplicates are in (15, 27, and 45), I would like to keep them. Please see my adjusted post above. Thanks.

Re: Remove duplicate string with condiction?

RW9 — Thu, 14 Dec 2017 15:24:30 GMT

Then subset + sort:

data temp;
  set have;
  where group in (10,20,30,40);
run;
proc sort data=temp nodupkey;
  by group class;
run;
data want;
  set have (where=(group not in (10,20,30,40)) temp;
run;

Re: Remove duplicate string with condiction?

ybz12003 — Thu, 14 Dec 2017 15:47:19 GMT

Awesome! thanks.