| classIntervals | Choose univariate class intervals |
| classIntervals2shingle | Choose univariate class intervals |
| findColours | assign colours to classes from classInterval object |
| findCols | extract classes from classInterval object |
| getBclustClassIntervals | Change breaks in a "classIntervals" object |
| getHclustClassIntervals | Change breaks in a "classIntervals" object |
| jenks.tests | Indices for assessing class intervals |
| jenks71 | Illinois 1959 county gross farm product value per acre |
| nPartitions | Choose univariate class intervals |
| plot.classIntervals | Choose univariate class intervals |
| print.classIntervals | Choose univariate class intervals |