Deleting rows on several conditions

Barkat — Tue, 30 Nov 2021 17:36:46 GMT

I have a hypothetical data as below.

If data in the 1st, 2nd, 3rd, 5th and 6th column are same and 4th column is either "A" or "B" then they will be considered as duplicate and one of those rows will be kept.

also

If data in the 1st, 2nd, 3rd, 5th and 6th column are same and 4th column is either "D" or "E" then they will be considered as duplicate and one of those rows will be kept.

So, the following rows will be considered as duplicates and one of them will be kept.

Rows 1 and 2

Rows 4 and 5

Rows 6 and 7

Rows 9 and 10

data have;
input ID date Test $ SubTest $ SourceCode Result $;
datalines;
1 1/1/21 ABC A 1 Positive
1 1/1/21 ABC B 1 Positive
1 1/1/21 ABC C 1 Negative
1 1/10/21 DEF D 1 Positive
1 1/10/21 DEF E 1 Positive
1 1/10/21 DEF F 1 Negative

2 1/1/21 ABC A 1 Negative
2 1/1/21 ABC B 1 Negative
2 1/1/21 ABC C 1 Negative
2 1/10/21 DEF D 1 Positive
2 1/10/21 DEF E 1 Positive
2 1/10/21 DEF F 1 Negative

3 1/1/21 ABC A 1 Positive
3 1/1/21 ABC B 1 Negative
3 1/1/21 ABC C 1 Negative
3 1/10/21 DEF D 1 Negative
3 1/10/21 DEF E 1 Positive
3 1/10/21 DEF F 1 Negative

4 1/1/21 ABC A 1 Positive
4 1/1/21 ABC B 2 Positive
4 1/1/21 ABC C 1 Negative
4 1/10/21 DEF D 1 Negative
4 1/10/21 DEF E 1 Positive
4 1/10/21 DEF F 1 Negative
;
run;

Re: Deleting rows on several conditions

PaigeMiller — Tue, 30 Nov 2021 18:04:46 GMT

data want;
    set have;
    prev_id=lag(id);
    prev_date=lag(date);
    prev_test=lag(test);
    prev_subtest=lag(subtest);
    prev_sourcecode=lag(sourcecode);
    prev_result=lag(result);
    if prev_id=id and prev_date=date and prev_test=test 
        and prev_sourcecode=sourcecode and prev_result=result then do;
        if prev_subtest='A' and subtest='B' then delete;
        if prev_subtest='D' and subtest='E' then delete;
        if prev_subtest=subtest then delete;
    end;
    drop prev_:;
run;

Re: Deleting rows on several conditions

Barkat — Tue, 30 Nov 2021 18:29:22 GMT

Perfect!!! Thanks so much!!! Highly appreciated!!!

topic Re: Deleting rows on several conditions in SAS Programming

Deleting rows on several conditions

Re: Deleting rows on several conditions

Re: Deleting rows on several conditions