chisq.dist {QFASA}

Returns the distance between two compositional vectors using the chi-square distance.

Description

Returns the distance between two compositional vectors using the chi-square distance.

Usage

chisq.dist(x.1, x.2, gamma)

Arguments

x.1

compositional vector

x.2

compositional vector

gamma

power transform taken to be 1.

References

Stewart, C., Iverson, S. and Field, C. (2014) Testing for a change in diet using fatty acid signatures. Environmental and Ecological Statistics 21, pp. 775-792.

Connie Stewart (2017) An approach to measure distance between compositional diet estimates containing essential zeros, Journal of Applied Statistics, 44:7, 1137-1152, DOI: 10.1080/02664763.2016.1193846