Fraction of variables that are considered to agree between two objects.
Notes: - The rules for agreement must be defined. For example in an elemental analysis, element concentrations equivalent within \(\pu{20\%}\).
- The Tanimoto index is used in drug discovery and QSAR for comparison of structures in large data bases in an efficient way.
- The Tanimoto index is essentially similar to the Jaccard index. (See https://en.wikipedia.org/wiki/Jaccard_index).
Source:
PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 432 (https://doi.org/10.1515/pac-2015-0605)