NR name output1
1  a    pan
1  b    before
2  a    eks
2  b    before
3  a    wye
3  b    before
4  a    eks
4  b    before
5  a    wye
5  b    before
6  a    zee
6  b    before
7  a    eks
7  b    before
8  a    zee
8  b    before
9  a    hat
9  b    before
10 a    pan
10 b    before

NR names output2
1  a_a   before
1  a_b   pan
1  a_i   1
1  a_x   0.34679014
1  a_y   0.72680286
2  a_a   before
2  a_b   pan
2  a_i   2
2  a_x   0.75867996
2  a_y   0.52215111
3  a_a   before
3  a_b   wye
3  a_i   3
3  a_x   0.20460331
3  a_y   0.33831853
4  a_a   before
4  a_b   wye
4  a_i   4
4  a_x   0.38139939
4  a_y   0.13418874
5  a_a   before
5  a_b   pan
5  a_i   5
5  a_x   0.57328892
5  a_y   0.86362447
6  a_a   before
6  a_b   pan
6  a_i   6
6  a_x   0.52712616
6  a_y   0.49322129
7  a_a   before
7  a_b   zee
7  a_i   7
7  a_x   0.61178406
7  a_y   0.18788492
8  a_a   before
8  a_b   wye
8  a_i   8
8  a_x   0.59855401
8  a_y   0.97618139
9  a_a   before
9  a_b   wye
9  a_i   9
9  a_x   0.03144188
9  a_y   0.74955076
10 a_a   before
10 a_b   wye
10 a_i   10
10 a_x   0.50262601
10 a_y   0.95261836
