Logistic Regression

Logistic Regression is a statistical model used to determine if an independent variable has an effect on a binary dependent variable. This means that there are only two potential outcomes given an input. For example, it may be used to determine if an email is spam, or not, using the rate of misspelled words, a common sign of spam. Other forms of regression analysis, like a linear regression, require the definition of a threshold to distinguish the binary classes (e.g. Linear regression allows for a probability to be established, but it must then be applied to a logistic regression to make the distinct classification.