StreamableChemAxon/Infocom JChem Extensions version 4.3.0.v202000 by Infocom Corporation
The fingerprints (which are chemical descriptors) are constructed from sequences of histograms, each of these histograms have the same number of bars. (Each of these bars represent a descriptor cell.) The number of histograms is determined by the number of pharmacophore types (also often referred as features, properties). If the number of distinct pharmacophore features (for instance H-donor, H-acceptor, charge etc.) is n then the number of histograms is n*(n+1)/2.
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