Use Selection Coefficient when you need to compute the selection coefficient s = 1 - w from a relative fitness w between 0 and 1. Enter Relative fitness using the definitions and units below so the result can be reproduced.

Relative fitness

A finite measured or assumed value from 0 through 1.

The published tool contract uses this rule: Compute the selection coefficient s = 1 - w from a relative fitness w between 0 and 1.

Selection coefficient s

The calculated selection coefficient s.

The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability. Relative fitness must remain between 0 and 1.

Retain the original Relative fitness values and their units alongside the result. Coancestry Coefficient is useful when you instead need to compute the coancestry or kinship phi of two individuals as half of their additive relationship coefficient. Inbreeding Coefficient provides another view by helping you compute the inbreeding coefficient f = (he - ho) / he, which may be negative when heterozygote excess occurs.

• Coancestry Coefficient

  Compute the coancestry or kinship phi of two individuals as half of their additive relationship coefficient.

• Inbreeding Coefficient

  Compute the inbreeding coefficient f = (he - ho) / he, which may be negative when heterozygote excess occurs.

• LD Coefficient D

  Compute linkage disequilibrium coefficient D = f(AB) - p(A) * p(B); the signed result may be negative.