lambda

  1. G

    Generalised Lambda Distribution

    Hello, Can anyone help me, I am trying to use the Generalized Lambda distribution to model some parts in an assembly, but apart from Wikipedia entry I can find very little about it, and nothing that tells me how to use it. I am trying to use it as a powerful software package we have uses...
  2. G

    Lambda Distribution or Generalised Lambda Distribution

    Hello All, I am looking to use a Lambda distribution to model, Normal, Uniform and distributions which are a combination of the two. But I can't find any information about it. (I had hoped to also include Skewed data. ) From Wikipedia, I think it is possible to do what I want, but all other...
  3. G

    Finding lambda for Box-Cox transformations for non-statisticians

    I've learned that statisticians are not to be trifled with, because every time I read anything about selecting lambda with the slopes of log-likelihoods and whatnot, it feels like I'm trying to grasp oil. That's on fire. That's why I fudge it and use the lambda where the resulting skew of the...
  4. 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...