I have a data frame with lower and upper bound values over different simulations:
Out[71]:
lb1 ub1 lb2 ub2 lb3 ... lb11 ub11 lb12 ub12 target
0 0.0005 5.0005 0.0025 5.0025 0.005 ... 50.0 55.0 250.0 255.0 NOVBCNtex
1 0.0000 5.0005 0.0000 5.0025 0.000 ... 0.0 55.0 0.0 255.0 FECRMexs
2 0.0005 5.0005 0.0025 5.0025 0.005 ... 50.0 55.0 250.0 255.0 DMSOtpp
...
which I would like to reshape by long format, indexed by 'alpha' and 'target':
alpha target lb ub
1 NOVBCNtex 0.0005 5.0005
2 NOVBCNtex 0.0025 5.0025
...
11 NOVBCNtex 0.0 55.0
12 NOVBCNtex 0.0 255.0
1 FECRMexs 0.0000 5.0005
2 FECRMexs 0.0000 5.0025
...
11 FECRMexs 50.0 55.0
12 FECRMexs 250.0 255.0
1 DMSOtpp 0.0005 5.0005
...