Code:
set scheme s2mono
* Example generated by -dataex-. To install: ssc install dataex
clear
input double(cseA id group)
3 1 1
4 2 2
4 3 1
4 4 1
4 5 1
4 6 2
4 7 2
4 8 1
4 9 1
3 10 1
4 11 1
4 12 2
3 13 1
4 14 1
4 15 2
4 16 1
3 17 1
4 18 2
5 19 2
3 20 1
4 21 2
3 22 2
3 23 1
3 24 2
3 25 1
4 26 1
3 27 1
5 28 2
4 29 2
4 30 1
3 31 1
5 32 2
4 33 1
3 34 1
4 35 1
4 36 1
3 37 1
5 38 2
5 39 2
3 40 1
4 41 2
4 42 2
4 43 2
3 44 1
3 45 1
4 46 1
4 47 1
4 48 2
4 49 1
4 50 1
3 51 1
3 52 2
4 53 1
4 54 1
3 55 1
4 56 2
4 57 1
4 58 2
4 59 2
4 60 1
4 61 2
5 62 2
4 63 1
4 64 2
4 65 2
4 66 1
3 67 1
3 68 1
5 69 2
4 70 2
3 71 1
4 72 2
3 73 1
3 74 1
4 75 1
3 76 1
3 77 1
4 78 2
4 79 1
3 80 1
3 81 1
4 82 2
4 83 1
4 84 2
2 85 1
4 86 1
4 87 2
4 88 2
4 89 2
3 90 2
3 91 1
3 92 1
3 93 2
3 94 1
4 95 2
4 96 1
3 97 1
4 98 1
4 99 2
4 100 1
end
graph bar (count) id, over(group,relabel(1 "group1" 2 "group2") label(angle(45)) gap(0) ) over(cseA) blabel(bar) ytitle("")
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