## Statistical Modelling Functions part-3

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 (more…)

## Mathematical Modelling Functions In R – Part 2

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 graphs below.. (more…)

## Mathematical Modelling Functions-Part 1

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 (more…)

## Principal Coordinate Analysis using R programming(PCoA)

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…