Sentence examples for by a logistic function from inspiring English sources

The results show that the expansion process of a single leaf on the main stem and tillers against growing degree days (GDD) followed a slow rapid slow pattern that was described well by a logistic function.

And by the way, populations of fruit flies confined to a particular area (like some human populations) don't grow as an S-shaped curve but by a logistic function shaped more like a learning curve: not exactly a nit for the picking.

A logistic regression tool models the probability by a logistic function, formulated in (2).

So the infectiousness index can be approximated by a logistic function, f, as shown in figure 2 (see Appendix S1 for details).

They are generally linked and modeled by a logistic function.

Growth of the primary tumor is described by a logistic function.

The conclusion has often been that the growth curves can be described by either a logistic function [ 17] or a Gompertz function [ 9, 18].

In this study logistic regression is used to estimate the correlation between the dependent variable (occurrence of debris flow) and independent variables (influencing attributes) by evaluating probabilities using a logistic function.

The EC50 and Hill slopes were determined by fitting data points to a logistic function.

Following the methodology used by Jawitz et al. (2008), a logistic function (Keen and Spain 1992) was used for the most basic, level 1 complexity, due to its density dependent growth and rapid (exponential) early stages of growth.

In this study, the probability of response to an item is a logistic function determined by person HRQoL and the severity of item 'δ' at category 'x'.