I have this list:

```
dCF3v=[[(1.90689635276794, -44704.76171875)],
       [(1.90689635276794, -44705.76171875)],
       [(1.90689635276794, -44706.76171875)],
       [(1.90689635276794, -44707.76171875)]
      ]

```

I'd like to know the index of the row where the maximum value is. In the example above: row index 3.

I already have a code for finding the maximum value:

```
CF3a = (abs(x[0][1]) for x in dCF3v)
CF3 = max(CF3a)

```

If possible I'd like to adapt this code and not have to do the classic `for and if loops`.