# Reduced-bias gamma entropy of a metacommunity

### Description

Calculates the reduced-bias Tsallis entropy of order *q* of a metacommunity.

### Usage

1 2 |

### Arguments

`MC` |
A |

`q` |
A number: the order of entropy. Default is 1. |

`Correction` |
A string containing one of the possible corrections accepted by the bias-corrected entropy function (see details) or |

`Tree` |
An object of class |

`Normalize` |
If |

`Z` |
A relatedness matrix, |

`CheckArguments` |
Logical; if |

### Details

If `Tree`

is not `NULL`

, then phylogenetic entropy is calculated by `bcPhyloEntropy`

.

Else, if `Z`

is not `NULL`

, then similarity-based entropy is calculated by `bcHqz`

.

Else, neutral entropy is calculated by `bcTsallis`

.

### Value

A number equal to the calculated entropy.

### Author(s)

Eric Marcon <Eric.Marcon@ecofog.gf>

### References

Marcon, E., Scotti, I., Herault, B., Rossi, V. and Lang, G. (2014). Generalization of the partitioning of Shannon diversity. *PLOS One* 9(3): e90289.

Marcon, E., Herault, B. (2015). Decomposing Phylodiversity. *Methods in Ecology and Evolution* 6(3): 333-339.

Marcon, E., Zhang, Z. and Herault, B. (2014). The decomposition of similarity-based diversity and its bias correction. *HAL* hal-00989454(version 1).

### See Also

`bcTsallis`

, `bcPhyloEntropy`

### Examples

1 2 3 4 5 6 7 8 | ```
# Load Paracou data (number of trees per species in two 1-ha plot of a tropical forest)
data(Paracou618)
# Calculate Simpson gamma entropy
GammaEntropy(Paracou618.MC, 2)
# Compare without correction
GammaEntropy(Paracou618.MC, 2, Correction = "None")
# Estimate phylogenetic Simpson gamma entropy
GammaEntropy(Paracou618.MC, 2, Tree = Paracou618.Taxonomy)
``` |