Entropy
Entropy is a measure of disorder or uncertainty in a probability distribution.
Gini index
The Gini index is a measure of the concentration of a variable's distribution.
Logistic regression
Regression is used to predict the value of the dependent (predicted) variable on the basis of the value of the independent variable or variables (predictors).
Neural networks
Neural networks are a family of algorithms that are becoming increasingly popular for tasks in the areas of prediction, classification, and clustering.
From variance to the method of least squares
The mean is one of the most popular and widely used statistical measures. However, by itself, it is not an exhaustive indicator and only allows us to determine the central...
Factor analysis
The aim of factor analysis is to explain as much of the variation as possible with as few variables as possible.
The power of a test
The power of a test is the probability of detecting a statistically significant effect when one actually occurs in the population under study.
SKEWNESS AND KURTOSIS
Kurtosis and skewness are measures of asymmetry that describe such properties as the shape and asymmetry of the distribution under analysis. They provide us with information on...
Quantiles, quartiles, percentiles (measures of location)
We use quantiles to determine the position of a given value against others in a group or population. Let's say you have received the results of your matriculation exams in...
