Is is necessary to take that long MorganFingerprint radius

[toushi68]

Hi,
Just noticed that you are using very long radius to generate MorganFingerprints.
for example:

ORGANIC/model/custom_metrics.py

Lines 56 to 57 in b372937

	setfps = [Chem.GetMorganFingerprintAsBitVect(
	mol, 4, nBits=2048) for mol in mols]

and

ORGANIC/model/nn_metrics.py

Lines 191 to 192 in b372937

	fps = [Chem.GetMorganFingerprintAsBitVect(
	mol, 12, nBits=self.nBits) for mol in mols]

any reasons for those long radius?
Thanks!