id reps type shape y
 1    1    A     X 3.0023446
 2    1    B     X 6.2343140
 3    1    C     X 3.7000599
 4    1    A     Y 2.5210056
 5    1    B     Y 1.9571064
 6    1    C     Y 2.7351340
 7    1    A     Z 0.8019610
 8    1    B     Z 4.0354648
 9    1    C     Z 1.7187192
10    2    A     X 4.4461089
11    2    B     X 5.3407802
12    2    C     X 4.0082059
13    2    A     Y 3.9540128
14    2    B     Y 2.8342218
15    2    C     Y 1.8867762
16    2    A     Z 1.8456419
17    2    B     Z 3.0921965
18    2    C     Z 0.7132731
19    3    A     X 2.3163296
20    3    B     X 5.3275019
21    3    C     X 2.3720720
22    3    A     Y 2.6948429
23    3    B     Y 1.5015419
24    3    C     Y 0.2376166
25    3    A     Z 3.4877080
26    3    B     Z 4.0801198
27    3    C     Z 2.5166976
28    4    A     X 3.2849854
29    4    B     X 2.9307216
30    4    C     X 3.0185007
31    4    A     Y 0.8989111
32    4    B     Y 5.9276714
33    4    C     Y 3.6343665
34    4    A     Z 2.4373646
35    4    B     Z 3.9624191
36    4    C     Z 1.1770003