## The Poisson Regression in R

The Poisson regression model should be used when the dependent (response) variable is in the form of counts or values of the response variables following a Poisson distribution. In R, glm() function can be used to perform Poisson regression analysis. …

## Non-Linear Regression Model

In the least square method, the regression model is established in such a way that “The sum of the squares of the vertical distances of different points (residuals) from the regression line is minimized” When the relationship between the variables …

## Logistic Regression Models in R

In logistic regression models, the response variable ($y$) is of categorical (binary, dichotomous) values such as 1 or 0 (TRUE/ FALSE). It measures the probability of a binary response variable based on a mathematical equation relating the values of the …

## Generalized Linear Models (GLM) in R

The generalized linear models (GLM) can be used when the distribution of the response variable is non-normal or when the response variable is transformed into linearity. The GLMs are flexible extensions of linear models that are used to fit the …