Description Usage Arguments Value Examples

View source: R/04_comparison_metrics.R

Computes the chi-squared distance between each element of a pair of vectors which must be of the same length. Good for comparing color histograms if you don't want to weight by color similarity. Probably hugely redundant; alas.

1 | ```
chisqDistance(a, b)
``` |

`a` |
Numeric vector. |

`b` |
Numeric vector; must be the same length as a. |

Chi-squared distance, *(a - b)^2/(a + b)*, between vectors a and
b. If one or both elements are NA/NaN, contribution is counted as a 0.

1 | ```
colordistance:::chisqDistance(rnorm(10), rnorm(10))
``` |

```
[1] 9.498323
```

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