Mark-Recapture Growth Models // Researchers often need to calculate body-size growth rates for individuals that do not have associated age data. These growth rates are based on mark- recapture data where an individual was captured and measured at time 1 then recaptured and measured at time 2. The sizes at each time and amount of time between captures can be used to calculate growth rates. 'MRgrowth' follows the approach in Edmonds et al. (2021) doi:10.1371/journal.pone.0259978 and provides functions to calculate growth using three formulas, the Faben's reformulation of the von Bertalanffy formula, the Gompertz formula, and a logistic formula.