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It all depends on what data set you're working with. There a quite a number of different regression analysis models that range the gambit of all functions you can think of. Obviously some are more useful than others. Logistic regression is extremely useful for population modelling because population growth follows a logistic curve. The final goal for any regression analysis is to have a mathematical function that most closely fits your data, so advantages and disadvantages depend entirely upon that.
Moore's Law states essentially the exponential nature of the curve existing between transistor count in a single chip and passed time in years. Although in most websites and sources, the curve shown is straight with transistor # being in the Y axis, it must be observed, Moore stated that the curve is exponential. Thus the graphs, if linear are logarithmic curves, as a log graph for an exponential curve is linear in nature. So instead of transistor nos (x) , we use ln(x)
Absolute growth rate(agr) curve enables us to express the growth of organisms in terms f growth rate. In most organism, agr increases steadily until reaches a maximum and then, gradually falls. Agr is a bell-shaped curve.
population growth begins to slow down
Logistic growth occurs when a population's growth slows and then stops, fallowing a period of exponential growthex; a lot of familiar plant and animal populations fallow a logestic growth curve.
An exponential model has a j-shaped growth rate that increases dramatically over a period of time with unlimited resources. A logistic model of population growth has a s-shaped curve with limited resources leading to a slow growth rate.
logistic growth
exponential (<-----Apex)
Logistic growth
Logistic Growth
4 stages lag phase, exponential phase, stationary phase and, decelerating phase
a logistic growth curve
The classic "S" shaped curve that is characteristic of logistic growth.
The classic "S" shaped curve that is characteristic of logistic growth.
exponential curve is when the unlimited source occur and mortility rate is lower, the individual in a population increase vigorously, no competition,