Use Relative Fitness when you need to compute relative fitness w = survived offspring / maximum survived offspring in the population. Enter Survived offspring and Maximum survived in population using the definitions and units below so the result can be reproduced.

Survived offspring

A finite measured or assumed value greater than or equal to 0.

Maximum survived in population

A finite measured or assumed value.

The published tool contract uses this rule: Compute relative fitness w = survived offspring / maximum survived offspring in the population.^[1]

Relative fitness w

The calculated relative fitness w.

The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability.

Retain the original Survived offspring and Maximum survived in population values and their units alongside the result. Relative Refractory Period is useful when you instead need to compute the fraction of relative refractory recovery clamped to 0..1 from elapsed time, the absolute refractory duration, and the relative recovery window. Relative Expression Fold provides another view by helping you convert a delta delta CT value into a relative fold change using the 2^-ddCt method.

• Relative Refractory Period

  Compute the fraction of relative refractory recovery clamped to 0..1 from elapsed time, the absolute refractory duration, and the relative recovery window.

• Relative Expression Fold

  Convert a delta delta CT value into a relative fold change using the 2^-ddCt method.

• Relative Growth Rate

  Compute plant relative growth rate RGR per day as (ln W2 - ln W1) / elapsed days from dry masses measured at two times.