Description Usage Arguments Value Author(s) References See Also Examples

Calculates Ochiai's index between two vectors of features.
In brief, the closer to 1 the more similar the vectors. The two vectors
may have an arbitrary cardinality (i.e. don't need same length). Very
similar to the Jaccard Index `jaccard`

but Ochiai is a
geometric means of the ratio.

1 | ```
ochiai(x, y)
``` |

`x` |
Character vector of feature names |

`y` |
Character vector of feature names |

Returns the Ochiai Index for the two vectors. It takes values in [0,1], with 0 meaning no overlap between two sets and 1 meaning two sets are identical.

Charles E. Determan Jr.

Ochiai A. (1957) *Zoogeographical studies on the soleoid
fishes found in Japan and its neigbouring regions*.
Bulletin of the Japanese Society of Scientific Fisheries. 22: 526-530.

Zucknick M., Richardson S., & Stronach E.A. (2008) *Comparing the
characteristics of gene expression profiles derived by univariate and
multivariate classification methods*. Statistical Applications in Genetics
and Molecular Biology. 7(1): Article 7. doi:10.2202/1544-6115.1307

He. Z. & Weichuan Y. (2010) *Stable feature selection for
biomarker discovery*. Computational Biology and Chemistry 34 215-225.

`kuncheva`

, `sorensen`

,
`ochiai`

, `pof`

, `pairwise.stability`

,
`pairwise.model.stability`

1 2 3 4 |

```
[1] 1
```

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