# Categorical Variables

### Some articles on categorical variable, variable, categorical variables, categorical, variables:

Categorical Variable
... In statistics, a categorical variable is a variable that can take on one of a limited, and usually fixed, number of possible values ... Categorical variables are often used to represent categorical data ... and some branches of mathematics, categorical variables are referred to as enumerations or enumerated types ...
Categorical Variables in Regression
... Categorical variables represent a qualitative method of scoring data (i.e ... These can be included in a regression analysis and treated as independent variables, but must be converted quantitatively in order to be able to analyze the ... There are three main coding systems typically used in the analysis of categorical variables in regression dummy coding, effects coding, and contrast coding ...
Dirichlet-multinomial Distribution - Probability Mass Function
... Conceptually, we are doing N independent draws from a categorical distribution with K categories ... Let us represent the independent draws as random categorical variables for ... Let us denote the number of times a particular category has been seen (for ) among all the categorical variables as ...

### Famous quotes containing the words variables and/or categorical:

The variables are surprisingly few.... One can whip or be whipped; one can eat excrement or quaff urine; mouth and private part can be meet in this or that commerce. After which there is the gray of morning and the sour knowledge that things have remained fairly generally the same since man first met goat and woman.
George Steiner (b. 1929)

We do the same thing to parents that we do to children. We insist that they are some kind of categorical abstraction because they produced a child. They were people before that, and they’re still people in all other areas of their lives. But when it comes to the state of parenthood they are abruptly heir to a whole collection of virtues and feelings that are assigned to them with a fine arbitrary disregard for individuality.
Leontine Young (20th century)