Dear All,
I've got repeated observations with thesame IDs. I want to keep only the first of the repeated observations for each of the IDs that appear. For example in the sample below, I want to keep only two observations. Serial number 1 and Serial number 31 [Will appreciate any help. tnx]:
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Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input float n str42 HHID
 1 "10100101111008"
 2 "10100101111008"
 3 "10100101111008"
 4 "10100101111008"
 5 "10100101111008"
 6 "10100101111008"
 7 "10100101111008"
 8 "10100101111008"
 9 "10100101111008"
10 "10100101111008"
11 "10100101111008"
12 "10100101111008"
13 "10100101111008"
14 "10100101111008"
15 "10100101111008"
16 "10100101111008"
17 "10100101111008"
18 "10100101111008"
19 "10100101111008"
20 "10100101111008"
21 "10100101111008"
22 "10100101111008"
23 "10100101111008"
24 "10100101111008"
25 "10100101111008"
26 "10100101111008"
27 "10100101111008"
28 "10100101111008"
29 "10100101111008"
30 "10100101111008"
31 "10100101111009"
32 "10100101111009"
33 "10100101111009"
34 "10100101111009"
35 "10100101111009"
36 "10100101111009"
37 "10100101111009"
38 "10100101111009"
39 "10100101111009"
40 "10100101111009"
41 "10100101111009"
42 "10100101111009"
43 "10100101111009"
44 "10100101111009"
45 "10100101111009"
46 "10100101111009"
47 "10100101111009"
48 "10100101111009"
49 "10100101111009"
50 "10100101111009"
51 "10100101111009"
52 "10100101111009"
53 "10100101111009"
54 "10100101111009"
55 "10100101111009"
56 "10100101111009"
57 "10100101111009"
58 "10100101111009"
59 "10100101111009"
60 "10100101111009"
end
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