- logistic function
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A function, the result of the division of two exponential functions, that gives rise to the logistic curve.
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logistic function
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Logistic function — A logistic function or logistic curve is the most common sigmoid curve. It modelsthe S curve of growth of some set P . The initial stage of growth is approximately exponential; then, as saturation begins, the growth slows, and at maturity, growth … Wikipedia
Generalised logistic function — The generalized logistic curve or function, also known as Richards curve is a widely used and flexible sigmoid function for growth modelling, extending the well known logistic curve.:Y = A + { K over (1 + Q e^{ B (t M)}) ^ {1 / u} }where Y =… … Wikipedia
Logistic distribution — Probability distribution name =Logistic type =density pdf cdf parameters =mu, location (real) s>0, scale (real) support =x in ( infty; +infty)! pdf =frac{e^{ (x mu)/s {sleft(1+e^{ (x mu)/s} ight)^2}! cdf =frac{1}{1+e^{ (x mu)/s! mean =mu, median … Wikipedia
Logistic regression — In statistics, logistic regression is a model used for prediction of the probability of occurrence of an event by fitting data to a logistic curve. It makes use of several predictor variables that may be either numerical or categorical. For… … Wikipedia
Logistic — * Logistics is the management of resources and their distribution. ** Logistic engineering is the scientific study of logistics. ** Military logistics is the study of logistics at the service of military units and operations. * The logistic… … Wikipedia
Logistic map — The logistic map is a polynomial mapping of degree 2, often cited as an archetypal example of how complex, chaotic behaviour can arise from very simple non linear dynamical equations. The map was popularized in a seminal 1976 paper by the… … Wikipedia
logistic — 1. adjective /ləˈdʒɪs.tɪk,lɒdʒˈɪs.tɪk,ləˈdʒɪs.tɪk,loʊˈdʒɪs.tɪk/ a) Relating to logistics. b) Relating to symbolic logic. 2. noun /ləˈdʒɪs.tɪk,lɒdʒˈɪs.tɪk,ləˈdʒɪs.tɪk,loʊˈdʒɪs.tɪk/ A logistic function or graph of a log … Wiktionary
logistic curve — noun an S shaped curve that models the growth of many ecosystems See Also: logistic function … Wiktionary
Function (mathematics) — f(x) redirects here. For the band, see f(x) (band). Graph of example function, In mathematics, a function associates one quantity, the a … Wikipedia
logistic curve — noun : a curve representing a function involving an exponential and shaped like the letter S a mass of data on growth of subhuman and human populations, of the number of governmental functions, growth of production, inventions, state laws and so… … Useful english dictionary
