Hi guys lets begin the third part of statistical modelling functions Sigmoid(s-shaped) function Biexponential model function Sigmoid(s-shaped) function: The simplest s-shaped function is

Ok, lets start, where I have left out Part 1(please read, in case you didn’t read first), start right there. Polynomial functions: are functions in which x appears several times, each time raised to a different power. They are useful for describing curves with humps, inflections or local maxima. See …

You can do a lot of maths in R. Here we concentrate on the kinds of mathematics that find most frequent application in scientific work and statistical modelling: Functions Continuous distributions Discrete distributions Matrix algebra Calculus Differential equations

Principal Coordinate Analysis (PCoA) is a method to represent on a 2 or 3 dimensional chart objects described by a square matrix containing resemblance indices between these objects. This method is due to Gower (1966). It is sometimes called metric MDS (MDS: Mutidimensional scaling) as opposed to the MDS (or …