# Negative class (machine learning)

> In binary classification, one class is termed *positive* and the other is termed *negative*. The positive class is the thing or event that the model is testing for and the negative class is the other possibility. For example:

In [binary classification](https://wiki.g15e.com/pages/Binary%20classification.txt), one class is termed *positive* and the other is termed *negative*. The positive class is the thing or event that the model is testing for and the negative class is the other possibility. For example:

- The negative class in a medical test might be "not tumor."
- The negative class in an email classifier might be "not spam."

## See also

- [Positive class](https://wiki.g15e.com/pages/Positive%20class%20(machine%20learning.txt))