niche.overlap.boot.pair {spaa}

Niche overlap boostrap utility function

Description

Compute the bootstrap value between two vectors. This is a internal function called by niche.overlap.boot, users are encouraged to use the latter function.

Usage

niche.overlap.boot.pair(vectorA, vectorB, method = c("levins", 
     "schoener", "petraitis", "pianka", "czech", "morisita"), 
      times = 999, quant = c(0.025, 0.975))

Arguments

vectorA

A numerical vector including species A's abundance or value of importance.

vectorB

A numerical vector including species B's abundance or value of importance.

method

Niche overlap indeces to be applied.

times

Number of bootstraps

quant

Confidence interval of the bootstrap results.

Details

To do.

Value

This function will return a vector including the following elements:\ "Observed", \ "Boot mean", \ "Boot std", \ "Boot CI1", \ "Boot CI2", \ "times" \

Note

Users are ecouraged to call niche.overlap.boot rather than this function.

Author(s)

Jinlong Zhang [e-mail]

References

Zhang Jin-tun,(2004 ) Quantitative Ecology, Science Press, Beijing

See Also

niche.overlap.boot

Examples

### niche.overlap.boot.pair() example
data(datasample)
niche.overlap.boot.pair(datasample[,1],datasample[,2], method = "levins")