1. Q

    grofit package model validation

    Hello, I used the grofit package (gcFitModel) for my data and obtained values for A, mu, and lambda. Its possible to easily do a cor.test for my observed data and the parameter I get for A (asymptotic size), but I am unable to figure out how to validate either all my parameters at once, or...
  2. Q

    Gomperz growth curve with grofit package

    Hi, I used the grofit package in R to fit the Gompertz growth model to my data (growth of quails over the course of several weeks). I obtained results for the three separate parameters: A, mu, and lambda. My main question is: is it possible to have negative values for lambda (lag phase)? It...