Functional tree with 8 species.

Expected value of *n^q* when *n* follows a Poisson law.

1 |

`n` |
A positive integer vector. |

`q` |
A positive number. |

The expectation of *n^q* when *n* follows a Poisson ditribution has been derived by Grassberger (1988).

A vector of the same length as `x`

containing the transformed values.

The function is computed using the `beta`

.function.

Its value is 0 for *n-q+1<0*.

Eric Marcon <Eric.Marcon@ecofog.gf>

Grassberger, P. (1988). Finite sample corrections to entropy and dimension estimates. Physics Letters A 128(6-7): 369-373.

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