4 random sampling

[J-Dymond]

• Random sampling + analysis scripts

• Refactoring changes, moving dataset loading functions into separate files

• Additional configs

[jack89roberts]

There's also a lot going on in the __main__ block of random sampling that could be pulled out into functions (anything that isn't just argparse)

[J-Dymond]

Will refactor __main__ in scripts/random_sampling.py

[J-Dymond]

removed conflicts with main

[klh5]

I missed this in the previous PR, but in dataset_generation.py args.r is always parsed as a string by argparse, so passing a float results in an error because you're multiplying by a string:

if args.r is not None:
        imbalance_ratio = args.r
        if isinstance(imbalance_ratio, int): # imbalance_ratio is never an int
            n_targets = imbalance_ratio
        else:
            n_targets = int(len(non_targets[0]) * imbalance_ratio) # Multiply by string in this case
            ...

Easy fix is probably to always cast args.r to float, then check if it's >1.

if args.r is not None:
        imbalance_ratio = float(args.r)
        if imbalance_ratio > 1:
            n_targets = imbalance_ratio
        else:
            n_targets = int(len(non_targets[0]) * imbalance_ratio)
            ...

[J-Dymond]

I've made that change now, thank you!

[klh5]

Looks good - just a couple of small things.