autoclass software package provides automatic classification or clustering, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install autoclass
autoclass is installed in your system.
Make ensure the autoclass package were installed using the commands given below,
$ sudo dpkg-query -l | grep autoclass *
You will get with autoclass package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Mathematics |
| Package | autoclass |
| Version | 3.3.6.dfsg.1-1 |
| Description | automatic classification or clustering |
| Sub Section | Math |