how to display duplicated observations in a data using base
sas.
Answers were Sorted based on User's Feedback
two ways u can do ot.
1. proc sort with dupout option.
2. data step:
data nodups dups;
set sample;
by x;
if first. and last. then output nodups;
else output dups;
run;
proc print data=dups;
run;
Is This Answer Correct ? | 6 Yes | 0 No |
Answer / m.sivakumar
data dups;
input var1;
datalines;
1
2
3
4
4
3
5
6
;
run;
proc sort data=dups;
by var1;
run;
data dups1;
set dups;
by var1;
if not(first.var1 and last.var1) then output;
run;
proc print data=dups;
run;
proc print data=dups1;
run;
Is This Answer Correct ? | 4 Yes | 1 No |
Answer / pratik
By using Dopout option we can display duplicate observation.
Proc sort data=datasetname1 nodupkey dopout=datasetname2;
by varaible.
run;
proc print data=datasetname2;
run;
Is This Answer Correct ? | 3 Yes | 0 No |
Answer / lakshmi
proc sort data=data1 out=data2 dupout=dup_data1 nodupkey;
by usubjid;
run;
the dataset dup_data1 has the duplicate observation.
Is This Answer Correct ? | 3 Yes | 2 No |
Answer / sheetal
If you are using SAS version 9 then use dupout option with
proc sort.
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / prakash hullathi
use frequency procedure with single column
data dups;
input var1;
datalines;
1
2
3
4
4
3
5
6
;
run;
proc freq data=dups;
tables var1/norow nocol nopercent;
run;
The output will be like this
var1 frequency cumulative frequency
1 1 1
2 1 2
3 2 4
4 2 6
5 1 7
6 1 8
here the observations for the variable var1 3 and 4 are
appered 2 times and remaining appeared for 1 time by
seeing the frequency of corresponding variable and
observation
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / pranitha patel
By using dupout option...
Proc sort data = X out = Xclean
Dupout = X dups nodupkey :
By variable :
Run:
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / manoj
Dupout Option
It is available on V9.1 onwards.
proc sort data=demo dupout=demo1 out=demo3 nodupkey;
by var1;
run;
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / dilip
proc sort data=x out=y;
by v;
data m;
set y;
by v;
if first.v and last.v then delete;
run;
this is for extracting duplicate observations
from a dataset
Is This Answer Correct ? | 1 Yes | 3 No |
What does P-value signify about the statistical data?
Mention some common errors that are usually committed in sas programming.
What is the difference between class statement and by statement in proc means?
what is the use of catalog?
What is the order of application for output data set options, input data set options and SAS statements?
here is a string like chq.2312244%4452- from that i want only special characters in a column. dont use compress. bcoz i have 1.2 billion of records.i want another process to find the values instant from the data.
Which are the statements whose placement in the data step is critical?
define table lookup and how may ways it can be done...explian
How would you code a merge that will keep only the observations that have matches from both sets.
5 Answers Accenture, Bank Of America,
What is the use of %include statement?
explain the proc in sas? : Sas-administrator
What are MIs reports? what is the use of MIS reports and How can u generate the MIS reports in SAS? If any body know explain with the eg.
2 Answers ABC, ASD Lab, CitiGroup,