Hello,
I want to select sets of combinations, but I do not want use all 1140
combn (20,3)
choose (20,3) - total of 1140.
[,1091] [,1092] [,1093] [,1094] [,1095] [,1096] [,1097] [,1098] [,1099]
[,1100]
[1,] 13 13 13 13 13 13 13 13
13 13
[2,] 15 15 15 15 15 16 16 16
16 17
[3,] 16 17 18 19 20 17 18 19
20 18
[,1101] [,1102] [,1103] [,1104] [,1105] [,1106] [,1107] [,1108]
[,1109] [,1110]
[1,] 13 13 13 13 13 14 14 14
14 14
[2,] 17 17 18 18 19 15 15 15
15 15
[3,] 19 20 19 20 20 16 17 18
19 20
[,1111] [,1112] [,1113] [,1114] [,1115] [,1116] [,1117] [,1118]
[,1119] [,1120]
[1,] 14 14 14 14 14 14 14 14
14 14
[2,] 16 16 16 16 17 17 17 18
18 19
[3,] 17 18 19 20 18 19 20 19
20 20
[,1121] [,1122] [,1123] [,1124] [,1125] [,1126] [,1127] [,1128]
[,1129] [,1130]
[1,] 15 15 15 15 15 15 15 15
15 15
[2,] 16 16 16 16 17 17 17 18
18 19
[3,] 17 18 19 20 18 19 20 19
20 20
[,1131] [,1132] [,1133] [,1134] [,1135] [,1136] [,1137] [,1138]
[,1139] [,1140]
[1,] 16 16 16 16 16 16 17 17
17 18
[2,] 17 17 17 18 18 19 18 18
19 19
[3,] 18 19 20 19 20 20 19 20
20 20
If it possible to select 20% of this combinations (sets)?
It is important to generate a random sample ...
Example
15 1 8 ...
16 7 20....
17 20 13...
Any advice?
Thanks,
Lara
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