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Tail Index for Nominal Variables

library(nomiShape)

Tail Index for Nominal Variables

This vignette demonstrates how to compute the tail index for nominal variables using the tail_index function from the nomiShape package. The tail index quantifies the proportion of categories contributing to the lower part of the distribution, useful for identifying long-tail structures in nominal data.

Computing Tail Index

# Example usage of tail_index
tail_index(categories, "animal")
#> [1] 0.1818182
# Example usage of tail_index
tail_index(categories2, "animal", threshold = 0.9)
#> [1] 0.1818182
# Example usage of tail_index
tail_index(categories3, "animal", threshold = 0.75)
#> [1] 0.7272727

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