What is "xplore"

XploRe was a commercial statistics software package, developed by the German software company MD*Tech around Prof. Dr. Wolfgang Härdle. XploRe has been discontinued in 2008, the last version, 4.8, is available for download at no cost. The user interacted with the software via the XploRe programming language, which is derived from the C programming language. Individual XploRe programs were called Quantlets.