# Classes Command

From GeoGebra Manual

- Classes[ <List of Data>, <Start>, <Width of Classes> ]
- Gives a list of class boundaries. The first boundary (min) is equal to
*Start*, the last boundary (max) will be at least the maximum of the*List*and the boundaries will be equally spaced between min and max. **Example:**`Classes[{0.1, 0.2, 0.4, 1.1}, 0, 1]`

gives {0, 1, 2}

- Classes[ <List of Data>, <Number of Classes> ]
- Gives a list of class boundaries. The first boundary (min) is equal to the minimum of the
*List*, the last boundary (max) will be the maximum of the*List*and the boundaries will be equally spaced between min and max. **Example:**`Classes[{1, 3, 5, 7, 8, 9, 10}, 3]`

gives {1, 4, 7, 10}

**Note:**By convention this uses the a ≤ x < b rule for each class except for the last class which is a ≤ x ≤ b